APA (7th ed.) Citation

Christmann, U., & Groeben, N. (2002). Sprache. Psychologie.

Chicago Style (17th ed.) Citation

Christmann, Ursula, and Norbert Groeben. "Sprache." Psychologie 2002.

MLA (9th ed.) Citation

Christmann, Ursula, and Norbert Groeben. "Sprache." Psychologie, 2002.

Warning: These citations may not always be 100% accurate.