Gaya APA

Kaku, ., Kaku, M. (2004). E-book Parallel Worlds: A Journey Through Creation, Higher Dimensions, and Future of the Cosmos . London: Doubleday & Company.

Gaya MLA

Kaku, ., Kaku, Michio. "E-book Parallel Worlds: A Journey Through Creation, Higher Dimensions, and Future of the Cosmos". London: Doubleday & Company, 2004. Text.