APA (7th ed.) Citation

United States. Public Health Service. (2008). Helping smokers quit: A guide for clinicians. U.S. Dept. of Health and Human Services, Public Health Service.

Chicago Style (17th ed.) Citation

United States. Public Health Service. Helping Smokers Quit: A Guide for Clinicians. [Rockville, Md.]: U.S. Dept. of Health and Human Services, Public Health Service, 2008.

MLA (9th ed.) Citation

United States. Public Health Service. Helping Smokers Quit: A Guide for Clinicians. U.S. Dept. of Health and Human Services, Public Health Service, 2008.