Não informado. (1945). Agriculture abroad. Department of Agriculture, Economics Division of the Marketing Service.
Čikaški stil citiranja (17. izdanje)Não informado. Agriculture Abroad. Ottawa: Department of Agriculture, Economics Division of the Marketing Service, 1945.
MLA način citiranja (8. izdanje)Não informado. Agriculture Abroad. Department of Agriculture, Economics Division of the Marketing Service, 1945.
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