APA (7th ed.) Citation

Johnson, W. H. (1977). Principles of zoology (2d ed.). Holt, Rinehart and Winston.

Chicago Style (17th ed.) Citation

Johnson, Willis Hugh. Principles of Zoology. 2d ed. New York: Holt, Rinehart and Winston, 1977.

MLA (8th ed.) Citation

Johnson, Willis Hugh. Principles of Zoology. 2d ed. Holt, Rinehart and Winston, 1977.