Schwartz, H. F., & Gálvez E., G. E. (1980). Bean production problems: Disease, insect soil and climatic constraints of Phaseolus vulgaris. International Center for Tropical Agriculture.
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Cita Chicago Style (17a ed.)
Schwartz, Howard F., y Guillermo E. Gálvez E. Bean Production Problems: Disease, Insect Soil and Climatic Constraints of Phaseolus Vulgaris. International Center for Tropical Agriculture, 1980.
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Cita MLA (9a ed.)
Schwartz, Howard F., y Guillermo E. Gálvez E. Bean Production Problems: Disease, Insect Soil and Climatic Constraints of Phaseolus Vulgaris. International Center for Tropical Agriculture, 1980.
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