APA (7th ed.) Citation

Watt, W. M., Ahmed, M. D., Marmura, M. E., & Welch, A. T. (1980). Der Islam. Verlag W. Kohlhammer.

Chicago Style (17th ed.) Citation

Watt, W. Montgomery, Munir D. Ahmed, Michael E. Marmura, and Alford T. Welch. Der Islam. Stuttgart [etc.]: Verlag W. Kohlhammer, 1980.

MLA (9th ed.) Citation

Watt, W. Montgomery, et al. Der Islam. Verlag W. Kohlhammer, 1980.

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