000
00297nam a2200121Ia 4500
008
220201s1990 xx 000 0 eng d
082
_a
621
_b
MAT
100
_a
Mathur,S B
245
0
_a
Mechanical engineering (objective type)
260
_a
delhi
_b
Dhanpat Rai
_c
1990
300
_a
829
942
_2
ddc
999
_c
33720
_d
33720