APA (7th ed.) Citation

Parker, J. B., & Clarke, J. J. (1949). An introduction to animal biology (3d ed.). Mosby.

Chicago Style (17th ed.) Citation

Parker, John Bernard, and John Joseph Clarke. An Introduction to Animal Biology. 3d ed. St. Louis: Mosby, 1949.

MLA (9th ed.) Citation

Parker, John Bernard, and John Joseph Clarke. An Introduction to Animal Biology. 3d ed. Mosby, 1949.