000 00239nam a2200097Ia 4500
008 230901s9999 xx 000 0 eng d
100 _aPAHUP SINGH, PHRALSAN (RT),
245 0 _aORGNIC CHEMSTRY
260 _bRBD BOOKS
942 _2ddc
_cSCIENCE
999 _c19933
_d19933