Cita APA (7a ed.)

Symonds, P. M. (1931). Diagnosing personality and conduct. The Century Co.

Cita Chicago Style (17a ed.)

Symonds, Percival Mallon. Diagnosing Personality and Conduct. New York ; London: The Century Co, 1931.

Cita MLA (9a ed.)

Symonds, Percival Mallon. Diagnosing Personality and Conduct. The Century Co, 1931.