Cita APA (7a ed.)

Steffgen, G., & Gollwitzer, M. (2007). Emotions and aggressive behavior. Hogrefe & Huber.

Cita Chicago Style (17a ed.)

Steffgen, Georges, y Mario Gollwitzer. Emotions and Aggressive Behavior. Cambridge, Mass. Göttingen [u.a.]: Hogrefe & Huber, 2007.

Cita MLA (9a ed.)

Steffgen, Georges, y Mario Gollwitzer. Emotions and Aggressive Behavior. Hogrefe & Huber, 2007.