Proceedings of second Pan American scientific congress : the agricultural college and the working farmer / by Butterfield, Kenyon L.

Subjects: “…RECURSOS NATURALES…”

Proceedings of second Pan American scientific congress : transportation of perishable commodities, need of cooperation by shippers with carriers / by McPike, Eugene F.

Subjects: “…RECURSOS NATURALES…”

Proceedings of second Pan American scientific congress : the extent and possibilities of cooperation / by Bassett, C. E.

Subjects: “…RECURSOS NATURALES…”

Proceedings of second Pan American scientific congress : uniform grades and standard packages / by More, C. T.

Subjects: “…RECURSOS NATURALES…”

Proceedings of second Pan American scientific congress : standardization of vegetables / by Cook, S. J.

Subjects: “…RECURSOS NATURALES…”

Proceedings of second Pan American scientific congress : possibilities of intensive agriculture in tropical America / by Cook, O. F.

Subjects: “…RECURSOS NATURALES…”

Proceedings of second Pan American scientific congress : the role of the dairy industry in a system of national agricultural development / by Rawl, B. H.

Subjects: “…RECURSOS NATURALES…”

Proceedings of second Pan American scientific congress : financing cooperative marketing associations / by Kerr, W. H.

Subjects: “…RECURSOS NATURALES…”

Proceedings of second Pan American scientific congress : the principles and practices of cooperation applied to citrus production and distribution / by Powell, G. Harold

Subjects: “…RECURSOS NATURALES…”

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

Subjects: “…RECURSOS NATURALES…”

Proceedings of second Pan American scientific congress : el manganeso en la capa arable del Uruguay / by Maimo Sarrasín, J.

Subjects: “…RECURSOS NATURALES…”

Proceedings of second Pan American scientific congress : the economic value of the auction as a distributor of perishable commodities / by McElheny, Victor K.

Subjects: “…RECURSOS NATURALES…”

Proceedings of second Pan American scientific congress : state aid to irrigation and swamp land reclamation projects / by Grunsky, C. E.

Subjects: “…RECURSOS NATURALES…”

Proceedings of second Pan American scientific congress : irrigation and public policy in Peru / by Sutton, C. W.

Subjects: “…RECURSOS NATURALES…”

Proceedings of the second Pan American scientific congress : dípteros nuevos parásitos de la schistocerca peregrina / by Nocedo, Carlos

Subjects: “…RECURSOS NATURALES…”

Proceedings of the second Pan American scientific congress : cooperación en el servicio cuarentenario de plantas entre los países panamericanos / by Johnston, John R.

Subjects: “…RECURSOS NATURALES…”

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

Subjects: “…RECURSOS NATURALES…”

Proceedings of the second Pan American scientific congress : efectos de la apertura del Canal de Panamá, sobre la distribución de productos agrícolas / by Carrasco Bascuñán, Eduardo

Subjects: “…RECURSOS NATURALES…”

Proceedings of the second Pan American scientific congress : the effective use of the Panama Canal in the distribution of products / by Brand, Charles J.

Subjects: “…RECURSOS NATURALES…”

Proceedings of the second Pan American scientific congress : convención internacional americana de policía veterinaria, posibilidad de ajustarla en determinadas condiciones / by Suárez, José León

Subjects: “…RECURSOS NATURALES…”