APA (7th ed.) Citation

Hoffmann, H., Thomas, K., Arens, D., & Keller, D. (1998). Unser Weltkulturerbe. DuMont.

Chicago Style (17th ed.) Citation

Hoffmann, Hans-Christian, Karin Thomas, Detlev Arens, and Dietmar Keller. Unser Weltkulturerbe. Köln: DuMont, 1998.

MLA (8th ed.) Citation

Hoffmann, Hans-Christian, et al. Unser Weltkulturerbe. DuMont, 1998.

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