National Institute of Health Administration and Education (India). (1975). Report of a study of prevalence of refractive error in Central Government employees. National Institute of Health Administration and Education.
Chicago-referens (17:e uppl.)National Institute of Health Administration and Education (India). Report of a Study of Prevalence of Refractive Error in Central Government Employees. New Delhi: National Institute of Health Administration and Education, 1975.
MLA-referens (8:e uppl.)National Institute of Health Administration and Education (India). Report of a Study of Prevalence of Refractive Error in Central Government Employees. National Institute of Health Administration and Education, 1975.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.