000
00271nam a2200109Ia 4500
008
220201s2007 xx 000 0 eng d
100
_a
MC-Grow-Hill
245
0
_a
Encyclopedia of Science & Tech.
260
_a
New Delhi
_b
Mc-Grow-Hill
_c
2007
300
_a
721
942
_2
ddc
999
_c
64981
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64981