000 00270nam a22001217a 4500
003 SGT
082 _a541.35
_bSIN
100 _aSINGH, JAGDAMBA
245 _aPHOTOCHEMISTRY AND PERICYCLIC REACTIONS
260 _aDELHI
_bNAIP
_c2020
300 _a519
942 _2ddc
_cBK
_037
999 _c22281
_d22281