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1“...Washington, D.C., USA : U.S. Department of Agriculture,...”
Texto bibliotecaUNAM -
2“...Washington, D.C., USA : United States Department of Agriculture,...”
software, multimedia bibliotecaUNAM -
3Published 1980“...Washington, DC, USA United States Department of Agriculture (USDA)...”
Texto bibliotecaCIAT -
4“...Washington, DC, USA United States Department of Agriculture (USDA), Office of Agricultural...”
Texto bibliotecaCIAT -
5by Houseman, Earl E.“...Washington, DC, USA Statistical Reporting Service; United States Department of Agriculture (USDA)...”
Published 1976
Texto bibliotecaCIAT