APA (7th ed.) Citation

Watt, W. M. W. M. (1990). What is Islam? (2nd ed.). Librairie Du Liban.

Chicago Style (17th ed.) Citation

Watt, W. Montgomery William Montgomery. What Is Islam? 2nd ed. Beirut: Librairie Du Liban, 1990.

MLA (9th ed.) Citation

Watt, W. Montgomery William Montgomery. What Is Islam? 2nd ed. Librairie Du Liban, 1990.

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