APA (7th ed.) Citation

Greene, B.. (2011). The hidden reality: Parallel universes and the deep laws of the cosmos. Penguin Books.

Chicago Style (17th ed.) Citation

Greene, Brian. The Hidden Reality: Parallel Universes and the Deep Laws of the Cosmos. London: Penguin Books, 2011.

MLA (9th ed.) Citation

Greene, Brian. The Hidden Reality: Parallel Universes and the Deep Laws of the Cosmos. Penguin Books, 2011.