00346nam a2200109Ia 4500008004100000082001800041100002000059245004000079260003400119300002300153490006000176250123b        |||||||| |||| 00| 0 eng d  a001bAg266.LU  aAggarwal, D. S.  aLectures on universe of knowledge /  aDelhi:bAcademic Press,c1985  a166p. Index, Bibl.  aAcademic series in library and information sciencevV.4