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  1. 1041
    Bush irá a la Cumbre ecológica de Río.

    Bush irá a la Cumbre ecológica de Río.

    Article
  2. 1042
    Secondary production of benthic insects in three cold-desert streams /

    Secondary production of benthic insects in three cold-desert streams / by Gaines, William Lee, 1961-

    Published 1987
    Get full text
    Book
  3. 1043
    Guide to the John G. Shedd Aquarium

    Guide to the John G. Shedd Aquarium by Shedd, John Graves 1850 - 1926

    Published 1950
    Book
  4. 1044
    Los peces /

    Los peces / by Herald, Earl Stannard, 1914-1973

    Published 1962
    Book
  5. 1045
    Reservoir fisheries and limnology /

    Reservoir fisheries and limnology / by Hall, Gordon E.

    Published 1971
    Book
  6. 1046
    Biogeography of Caddisfly Trichoptera assemblages in cold springs of the Sierra Nevada, California, Usa / Nancy A. Erman, Don C. Erman

    Biogeography of Caddisfly Trichoptera assemblages in cold springs of the Sierra Nevada, California, Usa / Nancy A. Erman, Don C. Erman by Erman, Nancy A.

    Published 1990
    Book
  7. 1047
    El contexto internacional de la Educación Superior

    El contexto internacional de la Educación Superior by Juri, Hugo

    Article
  8. 1048
    Los batolitos de Sonora

    Los batolitos de Sonora by Valencia Moreno, Martín

    Article
  9. 1049
    EE.UU. canjearía deudas por proyectos ecológicos: pla destinados a nueve países latinoamericano.

    EE.UU. canjearía deudas por proyectos ecológicos: pla destinados a nueve países latinoamericano.

    Article
  10. 1050
    Uso y desarrollo de las áreas recreativas.

    Uso y desarrollo de las áreas recreativas. by Stevens, Lawrence N.

    Book Chapter
  11. 1051
    Hombres de ciencia norteamericanos /

    Hombres de ciencia norteamericanos / by Jaffre, Bernard

    Published 1957
    Book
  12. 1052
    Early records of the city and couty of Albany and colony of rensselaerswyck.

    Early records of the city and couty of Albany and colony of rensselaerswyck.

    Published 1918
    Book
  13. 1053
    USA its geography and growth /

    USA its geography and growth /

    Published 1952
    Book
  14. 1054
    Annual rings in big sagebrush /

    Annual rings in big sagebrush / by Ferguson, Charles Wesley

    Published 1964
    Book
  15. 1055
    Education and the atom /

    Education and the atom / by Seaborg, Glenn T.

    Published 1964
    Book
  16. 1056
    Research reactor operation and use /

    Research reactor operation and use / by Chastain, Joel W.

    Published 1958
    Book
  17. 1057
    Transactions II congress on large dams of the world power conference.

    Transactions II congress on large dams of the world power conference.

    Published 1938
    Conference Proceeding Book
  18. 1058
    Bearing capacity and settlement of foundations /

    Bearing capacity and settlement of foundations / by Vesic, Aleksandar S.

    Published 1967
    Conference Proceeding Book
  19. 1059
    Symposium on effect of temperature on the properties of metals.

    Symposium on effect of temperature on the properties of metals.

    Published 1932
    Conference Proceeding Book
  20. 1060
    Ciudades de los EE.UU. : su legislación urbanística, sus códigos de edificación /

    Ciudades de los EE.UU. : su legislación urbanística, sus códigos de edificación / by Migone, Luis V.

    Published 1945
    Book

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