Peale, N. V. (1953). The power of positive thinking (6th. pr.). Prentice-Hall.
Cita Chicago Style (17a ed.)Peale, Norman Vincent. The Power of Positive Thinking. 6th. pr. New York: Prentice-Hall, 1953.
Cita MLA (9a ed.)Peale, Norman Vincent. The Power of Positive Thinking. 6th. pr. Prentice-Hall, 1953.
Precaución: Estas citas no son 100% exactas.