Proceedings of the second Pan American scientific congress : food plants and textiles of ancient America / by Edwin Safford, William

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Traité de médicine légale : atlas / by Orfila

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Proceedings of second Pan American scientific congress : conservación de las plantas industriales / by Piñol Batres, Rafael

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Proceedings of the second Pan American scientific congress : Pan American cooperation in plant quarantine / by Marlatt, C. I.

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Proceedings of the second Pan American scientific congress : further evidence that crown gall of plants is cancer / by Smith, Erwin F.

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Los fertilizantes y su empleo /

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Proceedings of second Pan American scientific congress : the water requirement of plants as influenced by enviroment / by Briggs, Lyman J.

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Difusión geográfica de cultivos índices en la provincia de Santiago del Estero y sus causas / by Barbalarga, carlos

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El uso eficaz de los fertilizantes /

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Proceedings of the second Pan American scientific congress : to what extent may college courses in engineering be profitably supplemented by practical work in the shop? - to what e... by Hamerschlag, Arthur A.

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Proceedings of the second Pan American scientific congress : un nuevo flagelado de las plantas - parasitología de ciertos animales del Paraguay / by Migone, Luis E.

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Proceeding of the second Pan American scientic congress : cooperative work in industrial plants in connection with engineering education / by Reber, Louis E.

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Proceedings of the second Pan American scientific congress : cooperación panamericana en la cuarentena de las plantas / by Sundberg, Roberto

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Primer congreso argentino de urbanismo : influencia de los ferrocarriles en la evolución morfológica de la planta urbana de Rosario / by Guido, Angel

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

Subjects: “…AGRICULTURA-CUARENTENA-PLANTAS COL…”

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

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

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

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