000
00312nam a2200133Ia 4500
020
_a
9788192265193
082
_b
2697
_a
030
245
0
_a
SCIENCE ENCYCLOPEDIA
260
_b
MD BOOKS INTERNATIONAL
_a
DELHI
_c
2012
300
_a
164
944
_c
R
999
_c
653227
_d
653227