Cita APA (7th ed.)

Curtis, D. (1961). Your thoughts can change your life. Wilshire Book Co.

Cita Chicago (17th ed.)

Curtis, Donald. Your Thoughts Can Change Your Life. California: Wilshire Book Co, 1961.

Cita MLA (9th ed.)

Curtis, Donald. Your Thoughts Can Change Your Life. Wilshire Book Co, 1961.

Atenció: Aquestes cites poden no estar 100% correctes.