APA (7th ed.) Citation

Spencer, R. (2005). The politically incorrect guide to Islam (and the Crusades). Regnery Publ.

Chicago Style (17th ed.) Citation

Spencer, Robert. The Politically Incorrect Guide to Islam (and the Crusades). Washington, DC: Regnery Publ, 2005.

MLA (9th ed.) Citation

Spencer, Robert. The Politically Incorrect Guide to Islam (and the Crusades). Regnery Publ, 2005.

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