APA (7th ed.) Citation

Tworuschka, M., & Tworuschka, U. (1982). Islam. Religionen.

Chicago Style (17th ed.) Citation

Tworuschka, Monika, and Udo Tworuschka. "Islam." Religionen 1982.

MLA (8th ed.) Citation

Tworuschka, Monika, and Udo Tworuschka. "Islam." Religionen, 1982.

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