APA (7th ed.) Citation

Peale, N. V. (1957). Unlock your faith-power. Prentice-Hall.

Chicago Style (17th ed.) Citation

Peale, Norman Vincent. Unlock Your Faith-power. New York: Prentice-Hall, 1957.

MLA (9th ed.) Citation

Peale, Norman Vincent. Unlock Your Faith-power. Prentice-Hall, 1957.

Warning: These citations may not always be 100% accurate.