APA

National Institutes of Health (U.S.), . (198). La vejez y salud dentales. [Washington, D.C: .

Chicago

National Institutes of Health (U.S.), . 198. La vejez y salud dentales. [Washington, D.C: .

Harvard

National Institutes of Health (U.S.), . (198). La vejez y salud dentales. [Washington, D.C: .

MLA

National Institutes of Health (U.S.), . La vejez y salud dentales. [Washington, D.C: . 198.