APA (7th ed.) Citation

Estados Unidos. Department of Health, Education, and Welfare. editor. (1979). 1978 Directory of on-going research in smoking and health. U.S. Department of Health, Education, and Welfare.

Chicago Style (17th ed.) Citation

Estados Unidos. Department of Health, Education, and Welfare. editor. 1978 Directory of On-going Research in Smoking and Health. Rockville: U.S. Department of Health, Education, and Welfare, 1979.

MLA (9th ed.) Citation

Estados Unidos. Department of Health, Education, and Welfare. editor. 1978 Directory of On-going Research in Smoking and Health. U.S. Department of Health, Education, and Welfare, 1979.