Cita APA (7a ed.)

Firestone, R. W. (1987). The inner voice and suicide. Psychotherapy, 23(3), 439-447.

Cita Chicago Style (17a ed.)

Firestone, Robert W. "The Inner Voice and Suicide." Psychotherapy 23, no. 3 (1987): 439-447.

Cita MLA (8a ed.)

Firestone, Robert W. "The Inner Voice and Suicide." Psychotherapy, vol. 23, no. 3, 1987, pp. 439-447.