APA (7th ed.) Zitazioa

THEODORSON, G. A. (1961). Studies in human ecology. Harper & Row.

Chicago Style (17th ed.) Zitazioa

THEODORSON, George A. Studies in Human Ecology. New York: Harper & Row, 1961.

MLA (9th ed.) Zitazioa

THEODORSON, George A. Studies in Human Ecology. Harper & Row, 1961.