Gaya APA

Halpean, P. (2004). The great beyond higher dimensions parallel universes and the extraodinary search for a theory of everything . New Yorkk: John Wiley dan Sons Inc.

Gaya MLA

Halpean, Paul. "The great beyond higher dimensions parallel universes and the extraodinary search for a theory of everything". New Yorkk: John Wiley dan Sons Inc, 2004. Printed Book.