Παραπομπή APA

Tibballs,Geoff. (2007). Ripley's believe it or not: The remarkable revealed. Ripley pub.

Παραπομπή Chicago Style

Tibballs,Geoff. Ripley's Believe It or Not: The Remarkable Revealed. Orlando: Ripley pub, 2007.

Παραπομπή MLA

Tibballs,Geoff. Ripley's Believe It or Not: The Remarkable Revealed. Ripley pub, 2007.