APA (7th ed.) Citation

Ritchie , D. D., & Carola, R. (1983). Biology: Donald D. Ritchie, Robert Carola (2nd ed.). Addison- Wesley.

Chicago Style (17th ed.) Citation

Ritchie , Donald D., and Robert Carola. Biology: Donald D. Ritchie, Robert Carola. 2nd ed. Reading Mass: Addison- Wesley, 1983.

MLA (9th ed.) Citation

Ritchie , Donald D., and Robert Carola. Biology: Donald D. Ritchie, Robert Carola. 2nd ed. Addison- Wesley, 1983.