Cita APA

Colbert, E. H. (1955). Dinosaurs (3rd ed.). The American Museum of Natural History.

Citación estilo Chicago

Colbert, Edwin Harris. Dinosaurs. 3rd ed. New York, N.Y.: The American Museum of Natural History, 1955.

Cita MLA

Colbert, Edwin Harris. Dinosaurs. 3rd ed. The American Museum of Natural History, 1955.