APA (7th ed.) Citation

Garrels, G., & Drechsler, W. (1987). Cumulus. Parkett.

Chicago Style (17th ed.) Citation

Garrels, Gary, and Wolfgang Drechsler. "Cumulus." Parkett 1987.

MLA (8th ed.) Citation

Garrels, Gary, and Wolfgang Drechsler. "Cumulus." Parkett, 1987.

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