Spencer, R. (2019). The truth about Muhammad: Founder of the world's most intolerant religion. Regnery.
Cita Chicago Style (17a ed.)Spencer, Robert. The Truth About Muhammad: Founder of the World's Most Intolerant Religion. Washington, D.C.: Regnery, 2019.
Cita MLA (9a ed.)Spencer, Robert. The Truth About Muhammad: Founder of the World's Most Intolerant Religion. Regnery, 2019.
Precaución: Estas citas no son 100% exactas.