APA aipamena

(1961). Seeds: The yearbook of griculture 1961. Washington: The United State Department of Agriculture.

Chicago Style aipamena

Seeds: The Yearbook of Griculture 1961. Washington: The United State Department of Agriculture, 1961.

MLA aipamena

Seeds: The Yearbook of Griculture 1961. Washington: The United State Department of Agriculture, 1961.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.