Cita APA (7a ed.)

Lester, D. (1972). Why people kill themselves: A summary of research findings on suicidal behavior. Thomas.

Cita Chicago Style (17a ed.)

Lester, David. Why People Kill Themselves: A Summary of Research Findings on Suicidal Behavior. Springfield (Ill.): Thomas, 1972.

Cita MLA (8a ed.)

Lester, David. Why People Kill Themselves: A Summary of Research Findings on Suicidal Behavior. Thomas, 1972.