APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (8th ed.) Citation

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