APA (7th ed.) Citation

Ritchie, D. D., & Carola, R. (1979). Biology. Addison-Wesley Pub. Co..

Chicago Style (17th ed.) Citation

Ritchie, Donald D., and Robert Carola. Biology. Reading, Mass: Addison-Wesley Pub. Co., 1979.

MLA (9th ed.) Citation

Ritchie, Donald D., and Robert Carola. Biology. Addison-Wesley Pub. Co., 1979.