APA (7th ed.) Zitazioa

(1898). Yearbook of the United States Department of Agriculture: научное издание.

Chicago Style (17th ed.) Zitazioa

Yearbook of the United States Department of Agriculture: научное издание. 1898.

MLA (9th ed.) Zitazioa

Yearbook of the United States Department of Agriculture: научное издание. 1898.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.