Cita APA

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

Chicago Style Citation

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

Cita MLA

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

Atenció: Aquestes cites poden no estar 100% correctes.