Estados Unidos. Agricultural Cooperative Service. (1986). Farmer cooperative publications. United States Agricultural Cooperative Service.
Cita Chicago Style (17a ed.)Estados Unidos. Agricultural Cooperative Service. Farmer Cooperative Publications. Washington: United States Agricultural Cooperative Service, 1986.
Cita MLA (9a ed.)Estados Unidos. Agricultural Cooperative Service. Farmer Cooperative Publications. United States Agricultural Cooperative Service, 1986.
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