Dyfyniad APA

Collins, G., & Altman, D. (2012). Authors' reply to Bird.

Dyfyniad Arddull Chicago

Collins, G., and D. Altman. Authors' Reply to Bird. 2012.

Dyfyniad MLA

Collins, G., and D. Altman. Authors' Reply to Bird. 2012.

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