Cita APA (7th ed.)

Osborne, C. G. (1967). The art of understanding yourself. Zondervan.

Cita Chicago (17th ed.)

Osborne, Cecil G. The Art of Understanding Yourself. Michigan: Zondervan, 1967.

Cita MLA (9th ed.)

Osborne, Cecil G. The Art of Understanding Yourself. Zondervan, 1967.