APA
(1961). Seeds the yearbook of agriculture. Washington, D.C: U. S. Goverment Printing Office.
Chicago
1961. Seeds the yearbook of agriculture. Washington, D.C: U. S. Goverment Printing Office.
Harvard
(1961). Seeds the yearbook of agriculture. Washington, D.C: U. S. Goverment Printing Office.
MLA
Seeds the yearbook of agriculture. Washington, D.C: U. S. Goverment Printing Office. 1961.
