APA引文

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

Trích dẫn kiểu Chicago

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

MLA引文

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

警告：这些引文格式不一定是100％准确.