000 00312nam a22001457a 4500
020 _a978-93-55014-71-9
082 _a500
_bLAK/S
100 _aSINGH, LAKHMIR
100 _aKAUR, MANJIT
245 _aSCIENCE 6
260 _aNOIDA
_bS CHAND & CO
_c2023
300 _a258
650 _aSCIENCE
_zINDIA
942 _cBK
999 _c6958
_d6958