APA (7th ed.) Citation

Nagel, T., & Duncker & Humblot. (2018). Was ist der Islam?: Grundzüge einer Weltreligion. Duncker & Humblot.

Chicago Style (17th ed.) Citation

Nagel, Tilman, and Duncker & Humblot. Was Ist Der Islam?: Grundzüge Einer Weltreligion. Berlin: Duncker & Humblot, 2018.

MLA (8th ed.) Citation

Nagel, Tilman, and Duncker & Humblot. Was Ist Der Islam?: Grundzüge Einer Weltreligion. Duncker & Humblot, 2018.

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