00331nam a22001337a 4500008004100000020001800041082001300059100001200072245003000084260003700114300001000151365001400161650002200175260420b        |||||||| |||| 00| 0 eng d  a9789384761547  a001bGEN  aGenerel  aLucents General Knowledge  aPatnab Lucent Publicationc2019  a410p.  dRs.235.00  aGeneral Knowlwdge