APA (7th ed.) Citation

Dellbrügge, C., & DeMoll, R. (1988). Hobbies.

Chicago Style (17th ed.) Citation

Dellbrügge, Christiane, and Ralf DeMoll. Hobbies. Heidelberg, 1988.

MLA (9th ed.) Citation

Dellbrügge, Christiane, and Ralf DeMoll. Hobbies. 1988.

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