APA
(1979). Healthy people. Washington, D.C: Department of Health Education and Welfare.
Chicago
1979. Healthy people. Washington, D.C: Department of Health Education and Welfare.
Harvard
(1979). Healthy people. Washington, D.C: Department of Health Education and Welfare.
MLA
Healthy people. Washington, D.C: Department of Health Education and Welfare. 1979.