000
00265nam a2200109Ia 4500
008
230512s9999 xx 000 0 und d
100
_a
k.k.mehra
245
0
_a
conceptual approach to chemistry
260
_a
jalandhar
_b
krishna bros
650
_a
textbook
942
_c
BK
999
_c
2907
_d
2907