APA

National Institute of Mental Health (U.S.), . (197). Human aging II: an eleven year follow up biomedical and behavioral study. [Washington, D.C: .

Chicago

National Institute of Mental Health (U.S.), . 197. Human aging II: an eleven year follow up biomedical and behavioral study. [Washington, D.C: .

Harvard

National Institute of Mental Health (U.S.), . (197). Human aging II: an eleven year follow up biomedical and behavioral study. [Washington, D.C: .

MLA

National Institute of Mental Health (U.S.), . Human aging II: an eleven year follow up biomedical and behavioral study. [Washington, D.C: . 197.