Dyfyniad APA

Brown, P. J. (1990). Disease, ecology, and human behavior. New York: Praeger.

Dyfyniad Arddull Chicago

Brown, Peter J. Disease, Ecology, and Human Behavior. New York: Praeger, 1990.

Dyfyniad MLA

Brown, Peter J. Disease, Ecology, and Human Behavior. New York: Praeger, 1990.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.