APA (7th ed.) Citation

Leonhard, H., & Glück, G. (1994). Was verursacht AIDS? Psychologie heute, 21(5), 40-50.

Chicago Style (17th ed.) Citation

Leonhard, Hans-Walter, and Gerhard Glück. "Was Verursacht AIDS?" Psychologie Heute 21, no. 5 (1994): 40-50.

MLA (9th ed.) Citation

Leonhard, Hans-Walter, and Gerhard Glück. "Was Verursacht AIDS?" Psychologie Heute, vol. 21, no. 5, 1994, pp. 40-50.