Dyfyniad APA

Drickamer, L. C., & Vessey, S. H. (2002). Animal behavior: Mechanisms, ecology, evolution. Boston: McGraw-Hill.

Dyfyniad Arddull Chicago

Drickamer, Lee C., và Stephen H. Vessey. Animal Behavior: Mechanisms, Ecology, Evolution. Boston: McGraw-Hill, 2002.

Dyfyniad MLA

Drickamer, Lee C., và Stephen H. Vessey. Animal Behavior: Mechanisms, Ecology, Evolution. Boston: McGraw-Hill, 2002.

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