Cita APA (7a ed.)

Edwards, R. V. (1977). Crisis intervention and how it works. Thomas.

Cita Chicago Style (17a ed.)

Edwards, Romaine V. Crisis Intervention and How It Works. Springfield, Ill: Thomas, 1977.

Cita MLA (9a ed.)

Edwards, Romaine V. Crisis Intervention and How It Works. Thomas, 1977.