APA (7th ed.) Citation

Mußgnug, M., & Quelle, G. (1979). Profil.

Chicago Style (17th ed.) Citation

Mußgnug, Martin, and Gerhard Quelle. Profil. Stuttgart, 1979.

MLA (8th ed.) Citation

Mußgnug, Martin, and Gerhard Quelle. Profil. 1979.

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