000
00352nam a2200157 4500
008
160616s1999 000 0
245
_a
Understanding chemistry
100
_a
Rao, C N R
260
_a
India
260
_b
Universities press
260
_c
1999
300
_a
298
020
_a
8173712506
942
_c
BK
_2
BK19269
080
_a
541 RAO
999
_c
19269
_d
19269