APA (7th ed.) Citation

Strute, K., & Doelken, T. (1981). Who's who in medicine (5th ed.). Verlag GmbH.

Chicago Style (17th ed.) Citation

Strute, Karl, and Theodor Doelken. Who's Who in Medicine. 5th ed. Woerthsee/Munich: Verlag GmbH, 1981.

MLA (9th ed.) Citation

Strute, Karl, and Theodor Doelken. Who's Who in Medicine. 5th ed. Verlag GmbH, 1981.