000
00310nam a2200145Ia 4500
008
220421s9999||||xx |||||||||||||| ||und||
020
_c
650/-
040
_a
ET
100
_a
BHATNAGAR R. P.
245
0
_a
CHEMISTRY
260
_b
ARUN PRAKASHAN
_a
NEW DELHI
300
_a
666
500
_a
51708
942
_c
BK
999
_c
57723
_d
57723