APA ציטוט

Keeton, W. T. (1967). Biological science. New York: W.W.Norton.

Trích dẫn kiểu Chicago

Keeton, W T. Biological Science. New York: W.W.Norton, 1967.

ציטוט MLA

Keeton, W T. Biological Science. New York: W.W.Norton, 1967.