000
00255nam a22001337a 4500
999
_c
275
_d
275
020
_a
9788121905992
082
_a
530
100
_a
D.S. Mathur
245
_a
Mechanics
250
_a
1st
260
_a
New Delhi
_b
S.Chand
_c
2005
300
_a
818
942
_c
BK