APA (7th ed.) Citation

Ostriker, J. P. (2013). Heart of darkness: Unraveling the mysteries of the invisible universe. Princeton University Press.

Chicago Style (17th ed.) Citation

Ostriker, J. P. Heart of Darkness: Unraveling the Mysteries of the Invisible Universe. Princeton, New Jersey: Princeton University Press, 2013.

MLA (9th ed.) Citation

Ostriker, J. P. Heart of Darkness: Unraveling the Mysteries of the Invisible Universe. Princeton University Press, 2013.