APA (7th ed.) Citation

Holman, R. M., & Robbins, W. W. (1939). A textbook of general botany for colleges and universities (4th ed.). Wiley.

Chicago Style (17th ed.) Citation

Holman, Richard Morris, and Wilfred William Robbins. A Textbook of General Botany for Colleges and Universities. 4th ed. New York: Wiley, 1939.

MLA (9th ed.) Citation

Holman, Richard Morris, and Wilfred William Robbins. A Textbook of General Botany for Colleges and Universities. 4th ed. Wiley, 1939.