APA

United States, . (1997). Healthfinder: your guide to reliable health information. Washington, D.C: Office of Disease Prevention and Health Promotion, U.S. Dept. of Health and Human Services.

Chicago

United States, . 1997. Healthfinder: your guide to reliable health information. Washington, D.C: Office of Disease Prevention and Health Promotion, U.S. Dept. of Health and Human Services.

Harvard

United States, . (1997). Healthfinder: your guide to reliable health information. Washington, D.C: Office of Disease Prevention and Health Promotion, U.S. Dept. of Health and Human Services.

MLA

United States, . Healthfinder: your guide to reliable health information. Washington, D.C: Office of Disease Prevention and Health Promotion, U.S. Dept. of Health and Human Services. 1997.