APA

Pope C. H., . (1955). The reptile world: a natural history of the snakes, lizards, turtles, and crocodilians. New York: Knopf.

Chicago

Pope Clifford Hillhouse, . 1955. The reptile world: a natural history of the snakes, lizards, turtles, and crocodilians. New York: Knopf.

Harvard

Pope C. H., . (1955). The reptile world: a natural history of the snakes, lizards, turtles, and crocodilians. New York: Knopf.

MLA

Pope Clifford Hillhouse, . The reptile world: a natural history of the snakes, lizards, turtles, and crocodilians. New York: Knopf. 1955.