Cita APA

Hildebrand, S. F., & Hildebrand, S. F. Amphibians and reptiles.

Citación estilo Chicago

Hildebrand, Samuel F., y Samuel F. Hildebrand. Amphibians and Reptiles.

Cita MLA

Hildebrand, Samuel F., y Samuel F. Hildebrand. Amphibians and Reptiles.