APA Style

Hill, Napoleon. (1997). Napoleon Hill's Keys to Success: The 17 Principles of Personal Achievement . New York: Plume.

Chicago Style

Hill, Napoleon. Napoleon Hill's Keys to Success: The 17 Principles of Personal Achievement. New York: Plume, 1997. Text.

MLA Style

Hill, Napoleon. Napoleon Hill's Keys to Success: The 17 Principles of Personal Achievement. New York: Plume, 1997. Text.

Turabian Style

Hill, Napoleon. Napoleon Hill's Keys to Success: The 17 Principles of Personal Achievement. New York: Plume, 1997. Print.