TY - JOUR A1 - Venkateshwarlu, D T1 - Methods of testing colour perception and observations on the same amongst service personnel Y1 - 1963/10/1 JF - Indian Journal of Ophthalmology JO - Indian J Ophthalmol SP - 96 EP - 99 VL - 11 IS - 4 UR - https://journals.lww.com/ijo/pages/default.aspx/article.asp?issn=0301-4738;year=1963;volume=11;issue=4;spage=96;epage=99;aulast=Venkateshwarlu N2 - ER -