Tibballs,Geoff. (2007). Ripley's believe it or not: The remarkable revealed. Ripley pub.
استشهاد بنمط شيكاغوTibballs,Geoff. Ripley's Believe It or Not: The Remarkable Revealed. Orlando: Ripley pub, 2007.
MLA استشهادTibballs,Geoff. Ripley's Believe It or Not: The Remarkable Revealed. Ripley pub, 2007.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.