Cita APA (7a ed.)

Helfer, R. E. (1976). The diagnostic process and treatment programs. U.S. Dept. of Health, Education and Welfare.

Cita Chicago Style (17a ed.)

Helfer, Ray E. The Diagnostic Process and Treatment Programs. Washington, D.C: U.S. Dept. of Health, Education and Welfare, 1976.

Cita MLA (9a ed.)

Helfer, Ray E. The Diagnostic Process and Treatment Programs. U.S. Dept. of Health, Education and Welfare, 1976.