(1899). Yearbook of the United States Department of Agriculture: научное издание.
Čikaški stil citiranja (17. izdanje)Yearbook of the United States Department of Agriculture: научное издание. 1899.
MLA način citiranja (9. izdanje)Yearbook of the United States Department of Agriculture: научное издание. 1899.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.