Awareness of electronic cigarettes and perceptions of harmfulness.

MLA

Health Information National Trends Survey. Awareness of electronic cigarettes and perceptions of harmfulness. [Bethesda, Md.] : Department of Health and Human Services, National Institutes of Health, National Cancer Institute, Health Information National Trends Survey, 2015.

APA

Health Information National Trends Survey. (2015). Awareness of electronic cigarettes and perceptions of harmfulness. [Bethesda, Md.] : Department of Health and Human Services, National Institutes of Health, National Cancer Institute, Health Information National Trends Survey.

Chicago

Health Information National Trends Survey. Awareness of electronic cigarettes and perceptions of harmfulness. [Bethesda, Md.] : Department of Health and Human Services, National Institutes of Health, National Cancer Institute, Health Information National Trends Survey, 2015.