dhawan, r. k.
a text book of engineering drawing [[Book] /] r. k.dhawan. - 14 th ed. - delhi : S. K. KATARIA & SONS, 1996. - 2 parts. ; 25 cm.
geometrical drawings.
machine drawing.
bullding drawing.
604.2
/ DT
a text book of engineering drawing [[Book] /] r. k.dhawan. - 14 th ed. - delhi : S. K. KATARIA & SONS, 1996. - 2 parts. ; 25 cm.
geometrical drawings.
machine drawing.
bullding drawing.
604.2
/ DT