00280nam a2200109Ia 4500008004100000020001500041100002100056245003600077250001300113260003400126300001000160250405s9999||||xx |||||||||||||| ||und||  a8170001102  aViswanathan C.G. 0aCataloguing theory and Practice  a6th Rev.  bEss Ess Pub.aNew Delhic2007  a450p.