Cita APA (7a ed.)

Schuller, R. H. (1983). Peace of mind through possibility thinking. Doubleday & Co., Inc..

Cita Chicago Style (17a ed.)

Schuller, Robert H. Peace of Mind Through Possibility Thinking. New York: Doubleday & Co., Inc., 1983.

Cita MLA (9a ed.)

Schuller, Robert H. Peace of Mind Through Possibility Thinking. Doubleday & Co., Inc., 1983.