00606nam a2200133Ia 4500008004100000040001700041082002300058100002700081245016900108260004400277300001000321440004900331650009200380190328s9999||||xx |||||||||||||| ||und||  aNITILcNITIL  221sta025.5bR196D  aRanganathan, S R (Ed.) 0aDepth classification and reference service and reference materialbpapers for discussion at the All India Library Conference (10th:1953: Hyderabad)cS R Ranganathan  aDelhibIndian Library Associationc1953  a444p.  aIndian Library Association Englsih series; 6  aReference services (libraries); Reference sources; Information services; Classification