00400nam a2200145Ia 4500008004100000082001600041100001900057245002700076260004600103300000800149650001600157650003700173653002700210700001700237170901s1977    xx            000 0 und d  a025.4bO30L  aOhdedar, A. K. 0aLibrary Classification  aCalcuttabThe World Press Pvt. Ltd.c1977  a264  aGneralities  aLibrary and Information sciences  aLibrary classification  aSengupta, B.