Cita APA

Peale, N. V. (1961). The tough-minded optimist. Fawcett World Library.

Citación estilo Chicago

Peale, Norman Vincent. The Tough-minded Optimist. New York: Fawcett World Library, 1961.

Cita MLA

Peale, Norman Vincent. The Tough-minded Optimist. Fawcett World Library, 1961.

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