APA (7th ed.) Citation

Bunning, E. (1967). The physiological clock (2nd edition.). Springer-Verlag.

Chicago Style (17th ed.) Citation

Bunning, Erwin. The Physiological Clock. 2nd edition. New York: Springer-Verlag, 1967.

MLA (8th ed.) Citation

Bunning, Erwin. The Physiological Clock. 2nd edition. Springer-Verlag, 1967.