Gaya APA

Harpern, P. (2004). The Great Beyond: Higher Dimensions, Parallel Universe, and the Extraodinary Search for a Theory of Everything (Ed. 1). U.S.A: John Wiley & Sons, Inc..

Gaya MLA

Harpern, Paul. "The Great Beyond: Higher Dimensions, Parallel Universe, and the Extraodinary Search for a Theory of Everything". Ed. 1 U.S.A: John Wiley & Sons, Inc., 2004. Text.