Cita APA (7a ed.)

Perrah, M., & Wichman, H. (1987). Cognitive rigidity in suicide attempters. Suicide and life-threatening behavior, 17(3), 251-256.

Cita Chicago Style (17a ed.)

Perrah, Maureen, y Harvey Wichman. "Cognitive Rigidity in Suicide Attempters." Suicide and Life-threatening Behavior 17, no. 3 (1987): 251-256.

Cita MLA (8a ed.)

Perrah, Maureen, y Harvey Wichman. "Cognitive Rigidity in Suicide Attempters." Suicide and Life-threatening Behavior, vol. 17, no. 3, 1987, pp. 251-256.