Cita APA (7a ed.)
Peale, N. V. (1952). The power of positive thinking. Prentice-Hall.
Cita Chicago Style (17a ed.)
Peale, Norman Vincent. The Power of Positive Thinking. New York: Prentice-Hall, 1952.
Cita MLA (9a ed.)
Peale, Norman Vincent. The Power of Positive Thinking. Prentice-Hall, 1952.
Precaución: Estas citas no son 100% exactas.