000
00242nam a2200109Ia 4500
008
220201s1981 xx 000 0 eng d
100
_a
Dhawan, RK
245
0
_a
Mechanical drawing
260
_b
Katson Pub
_c
1981
300
_a
90
942
_2
ddc
999
_c
82203
_d
82203