Cita APA (7a ed.)

Ursin, H., & Olff, M. (1995). Aggression, defense, and coping in humans. Aggressive behavior, 21(1), 13-19.

Cita Chicago Style (17a ed.)

Ursin, H., y M. Olff. "Aggression, Defense, and Coping in Humans." Aggressive Behavior 21, no. 1 (1995): 13-19.

Cita MLA (8a ed.)

Ursin, H., y M. Olff. "Aggression, Defense, and Coping in Humans." Aggressive Behavior, vol. 21, no. 1, 1995, pp. 13-19.