Worried about your parents smoking.
APA Citation
United States. Office on Smoking and Health. (1985). Worried about your parents smoking. [Washington, D.C.?]: Office on Smoking and Health, Public Health Service, U.S. Dept. of Health and Human Services.
MLA Citation
United States. Office on Smoking and Health. Worried About Your Parents Smoking. [Washington, D.C.?]: Office on Smoking and Health, Public Health Service, U.S. Dept. of Health and Human Services, 1985.
Warning: These citations may not always be complete (especially for serials).