Cita APA (7th ed.)

Bristol, C. M. (1985). The magic of believing: The science of setting your goal and them reaching it (New rev. ed.). Prentice Hall Press.

Cita Chicago (17th ed.)

Bristol, Claude M. The Magic of Believing: The Science of Setting Your Goal and Them Reaching It. New rev. ed. New York: Prentice Hall Press, 1985.

Cita MLA (9th ed.)

Bristol, Claude M. The Magic of Believing: The Science of Setting Your Goal and Them Reaching It. New rev. ed. Prentice Hall Press, 1985.