Cita APA (7th ed.)
Spencer, R. (2007). Religion of peace?: Why Christianity is and Islam isn't. Regnery Pub..
Cita Chicago (17th ed.)
Spencer, Robert. Religion of Peace?: Why Christianity Is and Islam Isn't. Washington, DC: Regnery Pub., 2007.
Cita MLA (9th ed.)
Spencer, Robert. Religion of Peace?: Why Christianity Is and Islam Isn't. Regnery Pub., 2007.
Atenció: Aquestes cites poden no estar 100% correctes.