APA (7th ed.) Citation

Adler, I., & Adler, R. (1965). Evolution: The "Reason Why" books. The John Day.

Chicago Style (17th ed.) Citation

Adler, Irving, and Ruth Adler. Evolution: The "Reason Why" Books. New York: The John Day, 1965.

MLA (9th ed.) Citation

Adler, Irving, and Ruth Adler. Evolution: The "Reason Why" Books. The John Day, 1965.