APA (7th ed.) Citation

Hill, J. B., & Popp, H. W. (1967). Botany: A textbook for colleges. McGraw-Hill.

Chicago Style (17th ed.) Citation

Hill, John Benjamin, and Henry W. Popp. Botany: A Textbook for Colleges. New York: McGraw-Hill, 1967.

MLA (9th ed.) Citation

Hill, John Benjamin, and Henry W. Popp. Botany: A Textbook for Colleges. McGraw-Hill, 1967.