APA

National Institutes of Health (U.S.), . (1984). Dental sealants in the prevention of tooth decay. [Washington, D.C: .

Chicago

National Institutes of Health (U.S.), . 1984. Dental sealants in the prevention of tooth decay. [Washington, D.C: .

Harvard

National Institutes of Health (U.S.), . (1984). Dental sealants in the prevention of tooth decay. [Washington, D.C: .

MLA

National Institutes of Health (U.S.), . Dental sealants in the prevention of tooth decay. [Washington, D.C: . 1984.