APA (7th ed.) Citation

Watt, W. M., Watt, W. M., Marmura, M. E., & Ahmed, M. D. (1985). Der Islam. Kohlhammer.

Chicago Style (17th ed.) Citation

Watt, William Montgomery, William Montgomery Watt, Michael E. Marmura, and Munir D. Ahmed. Der Islam. Stuttgart ; Berlin ; Köln: Kohlhammer, 1985.

MLA (9th ed.) Citation

Watt, William Montgomery, et al. Der Islam. Kohlhammer, 1985.