APA (7th ed.) Citation

Moore, T. (2004). Dark nights of the soul: A guide to finding your way through life's ordeals. Gotham Books.

Chicago Style (17th ed.) Citation

Moore, Thomas. Dark Nights of the Soul: A Guide to Finding Your Way Through Life's Ordeals. New York: Gotham Books, 2004.

MLA (9th ed.) Citation

Moore, Thomas. Dark Nights of the Soul: A Guide to Finding Your Way Through Life's Ordeals. Gotham Books, 2004.