Wright, M. (2001). African grey parrots: Everything about history, care, nutrition, handling, and behavior. Barron's.
Chicago-Zitierstil (17. Ausg.)Wright, Maggie. African Grey Parrots: Everything About History, Care, Nutrition, Handling, and Behavior. Hauppauge, NY: Barron's, 2001.
MLA-Zitierstil (9. Ausg.)Wright, Maggie. African Grey Parrots: Everything About History, Care, Nutrition, Handling, and Behavior. Barron's, 2001.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.