APA (7th ed.) Citation

National Library of Medicine (U.S.) National Library of Medicine (U.S.) NIM audiovisuals catalogs. (1991). National Library of Medicine audiovisual catalog: Annual cumulation 1991. U.S. Dept. of Health and Human Services, National Library of Medicine.

Chicago Style (17th ed.) Citation

National Library of Medicine (U.S.) National Library of Medicine (U.S.) NIM audiovisuals catalogs. National Library of Medicine Audiovisual Catalog: Annual Cumulation 1991. Bethesda, MD: U.S. Dept. of Health and Human Services, National Library of Medicine, 1991.

MLA (9th ed.) Citation

National Library of Medicine (U.S.) National Library of Medicine (U.S.) NIM audiovisuals catalogs. National Library of Medicine Audiovisual Catalog: Annual Cumulation 1991. U.S. Dept. of Health and Human Services, National Library of Medicine, 1991.