Gaya APA

Halpern, P. (2004). The great beyond: higher dimentions, parallel universes and the extraordinary search for a theory of everyting . Jakarta: John Wiley n Sons.

Gaya MLA

Halpern, Paul. "The great beyond: higher dimentions, parallel universes and the extraordinary search for a theory of everyting". Jakarta: John Wiley n Sons, 2004. Textbook.