APA aipamena

Kaku Michio. (2006). Parallel Worlds. Penguin Books.

Chicago Style aipamena

Kaku Michio. Parallel Worlds. london: Penguin Books, 2006.

MLA aipamena

Kaku Michio. Parallel Worlds. Penguin Books, 2006.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.