00438nam a2200133Ia 4500008004100000040001700041082002100058100001800079245005200097260002600149300001000175440007800185650004100263190328s9999||||xx |||||||||||||| ||und||  aNITILcNITIL  221sta001bA266L  aAggarwal, D S 0aLectures on universe of knowledgecD S Aggarwal  aDelhibAcademicc1985  a166p.  aAcademic series in library and information science/ed by M L Saini, vol.4  aKnowledge, Theory of Library science