Cita APA (7a ed.)

Symonds, P. M. (1951). The ego and the self. Appleton-Century-Crofts, Inc.

Cita Chicago Style (17a ed.)

Symonds, Percival Mallon. The Ego and the Self. New York: Appleton-Century-Crofts, Inc, 1951.

Cita MLA (9a ed.)

Symonds, Percival Mallon. The Ego and the Self. Appleton-Century-Crofts, Inc, 1951.