00420nam a22001577a 4500003000600000005001700006008004100023020002900064040001700093082002500110100001300135245003700148260003300185300001600218650002800234NITIL20220822131138.0220822b        ii ||||| |||| 00| 0 eng d  cRs.250.00a9789389556445  aNITILcNITIL  223rd ed.a500bG977S  aGupta, A  aSciencebPractical bookcA Gupta  aNew DelhibLab Stationc2022  a130p.; 23cm  aSCIENCE- PRACTICAL BOOK