APA (7th ed.) Citation

Roper, L. W. (1944). Raymond L. Ditmars: His exciting career with reptiles, animals and insects. Julian Messner.

Chicago Style (17th ed.) Citation

Roper, Laura Wood. Raymond L. Ditmars: His Exciting Career with Reptiles, Animals and Insects. New York: Julian Messner, 1944.

MLA (9th ed.) Citation

Roper, Laura Wood. Raymond L. Ditmars: His Exciting Career with Reptiles, Animals and Insects. Julian Messner, 1944.