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.
Atenció: Aquestes cites poden no estar 100% correctes.