(1973). Scientific directory 1973 and annual bibliography 1972. US Department of Health, Education, and Welfare. National Institutes of Health. Office of Information.
Chicago Style (17th ed.) CitationScientific Directory 1973 and Annual Bibliography 1972. Bethesda (Maryland): US Department of Health, Education, and Welfare. National Institutes of Health. Office of Information, 1973.
MLA (9th ed.) CitationScientific Directory 1973 and Annual Bibliography 1972. US Department of Health, Education, and Welfare. National Institutes of Health. Office of Information, 1973.
Warning: These citations may not always be 100% accurate.
