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  1. 301
    Proceedings of the second Pan American scientific congress : history of the origin and development of de United States mining laws /

    Proceedings of the second Pan American scientific congress : history of the origin and development of de United States mining laws / by Thompson, J. W.

    Article
  2. 302
    Proceedings of the second Pan American scientific congress : contribución al estudio de la figura de la tierra - sobre el notable paralelismo de los sistemas de montañas del globo /

    Proceedings of the second Pan American scientific congress : contribución al estudio de la figura de la tierra - sobre el notable paralelismo de los sistemas de montañas del globo... by Sandoval, Luis Matamoros

    Article
  3. 303
    Proceedings of the second Pan American scientific congress : the prospect for marketing South American zinc ore /

    Proceedings of the second Pan American scientific congress : the prospect for marketing South American zinc ore / by Ingalls, W. R.

    Article
  4. 304
    Proceedings of the second Pan American scientific congress : lead and zinc resources of the United States /

    Proceedings of the second Pan American scientific congress : lead and zinc resources of the United States / by Siebenthal, C. E.

    Article
  5. 305
    Proceedings of the second Pan American scientific congress : iron ores of the Americas /

    Proceedings of the second Pan American scientific congress : iron ores of the Americas / by Leith, C. K.

    Article
  6. 306
    Proceedings of the second Pan American scientific congress : datos para la historia de la minería en la República de Guatemala /

    Proceedings of the second Pan American scientific congress : datos para la historia de la minería en la República de Guatemala / by Lemus, Manuel

    Article
  7. 307
    Proceedings of the second Pan American scientific congress : la industria del petróleo en el Perú durante 1915 /

    Proceedings of the second Pan American scientific congress : la industria del petróleo en el Perú durante 1915 / by Deustua, Ricardo A.

    Article
  8. 308
    Proceedings of the second Pan American scientific congress : mining, the pioneer of intimate commercial relations /

    Proceedings of the second Pan American scientific congress : mining, the pioneer of intimate commercial relations / by Sharpless, Frederick F.

    Article
  9. 309
    Proceedings of the second Pan American scientific congress : value of mining property, a discussion of the relations between morthern capital and South American mines /

    Proceedings of the second Pan American scientific congress : value of mining property, a discussion of the relations between morthern capital and South American mines / by Finlay, J. R.

    Article
  10. 310
    Proceedings of the second Pan American scientific congress : Mine of Chile Exploration Co., Chuquicanata, Chile /

    Proceedings of the second Pan American scientific congress : Mine of Chile Exploration Co., Chuquicanata, Chile / by Yeaman, Pope

    Article
  11. 311
    Proceedings of the second Pan American scientific congress : the history and development of gold dredgind in Montana /

    Proceedings of the second Pan American scientific congress : the history and development of gold dredgind in Montana / by Jennungs, Hennen

    Article
  12. 312
    Proceedings of the second Pan American scientific congress : placer-mining methods and operating costs /

    Proceedings of the second Pan American scientific congress : placer-mining methods and operating costs / by Janin, Charles

    Article
  13. 313
    Congreso Científico Panamericano (2 : 1915-1916 : Washington).

    Congreso Científico Panamericano (2 : 1915-1916 : Washington).

    Published 1917
    Conference Proceeding Book
  14. 314
    Congreso Científico Panamericano (2 : 1915-1916 : Washington).

    Congreso Científico Panamericano (2 : 1915-1916 : Washington).

    Published 1917
    Conference Proceeding Book
  15. 315
    TECNICA Y ECONOMIA

    TECNICA Y ECONOMIA

    Serial
  16. 316
    Química /

    Química /

    Published 1979
    Book
  17. 317
    Fundamentals of Inorganic Organic & Biological Chemistry /

    Fundamentals of Inorganic Organic & Biological Chemistry /

    Published 1949
    Book
  18. 318
    Química general moderna /

    Química general moderna /

    Published 1977
    Book
  19. 319
    Química /

    Química /

    Published 1977
    Book
  20. 320
    Chemistry in Health and Disease /

    Chemistry in Health and Disease /

    Published 1951
    Book

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