APA

Rai Amritash, University of Delhi. Faculty of Medical Sciences. Department of Psychiatry & University of Delhi. Faculty of Medical Sciences. Department of Psychiatry. (2000). Study of prevalence and pattern of non-medical drug use in school students. (Supervisor. : .

Chicago

Rai Amritash, University of Delhi. Faculty of Medical Sciences. Department of Psychiatry and University of Delhi. Faculty of Medical Sciences. Department of Psychiatry. 2000. Study of prevalence and pattern of non-medical drug use in school students. (Supervisor. : .

Harvard

Rai Amritash, University of Delhi. Faculty of Medical Sciences. Department of Psychiatry and University of Delhi. Faculty of Medical Sciences. Department of Psychiatry. (2000). Study of prevalence and pattern of non-medical drug use in school students. (Supervisor. : .

MLA

Rai Amritash, University of Delhi. Faculty of Medical Sciences. Department of Psychiatry and University of Delhi. Faculty of Medical Sciences. Department of Psychiatry. Study of prevalence and pattern of non-medical drug use in school students. (Supervisor. : . 2000.