000
00300nam a2200121Ia 4500
008
220201s2010 xx 000 0 eng d
082
_a
604.2
_b
DHA
100
_a
Dhawan, Er. R.K.
245
2
_a
A Textbook of engineering drawing
260
_a
New Delhi
_b
S. Chand
_c
2010
300
_a
660
942
_2
ddc
999
_c
63998
_d
63998