Bagemihl, b., & Megahan, J. (1999). Biological exuberance: Animal homosexuality and natural diversity / Bruce Bagemihl. Illustrated by John Megahan (1. Auflage, [Nachdruck].). St. Martin's.

Bagemihl, bruce, and John Megahan. Biological Exuberance: Animal Homosexuality and Natural Diversity / Bruce Bagemihl. Illustrated by John Megahan. 1. Auflage, [Nachdruck]. New York: St. Martin's, 1999.

Bagemihl, bruce, and John Megahan. Biological Exuberance: Animal Homosexuality and Natural Diversity / Bruce Bagemihl. Illustrated by John Megahan. 1. Auflage, [Nachdruck]. St. Martin's, 1999.