National Cancer Institute (U.S.). (1983). Pretesting in health communications: Methods, examples, and resources for improving health messages and materials (Rev. Dec. 1982.). U.S. Dept. of Health and Human Services, Public Health Service, National Institutes of Health, National Cancer Institute.
Chicago Style (17th ed.) CitationNational Cancer Institute (U.S.). Pretesting in Health Communications: Methods, Examples, and Resources for Improving Health Messages and Materials. Rev. Dec. 1982. Bethesda, Md.: U.S. Dept. of Health and Human Services, Public Health Service, National Institutes of Health, National Cancer Institute, 1983.
MLA (9th ed.) CitationNational Cancer Institute (U.S.). Pretesting in Health Communications: Methods, Examples, and Resources for Improving Health Messages and Materials. Rev. Dec. 1982. U.S. Dept. of Health and Human Services, Public Health Service, National Institutes of Health, National Cancer Institute, 1983.