Cita APA (7a ed.)

USA. (1977). Providing human services to the elderly. Dept. of Health, Education and Welfare.

Cita Chicago Style (17a ed.)

USA. Providing Human Services to the Elderly. Washington, D.C: Dept. of Health, Education and Welfare, 1977.

Cita MLA (9a ed.)

USA. Providing Human Services to the Elderly. Dept. of Health, Education and Welfare, 1977.