textbook of engineering drawing :geometrical drawing
Dhawan, R. K.
textbook of engineering drawing :geometrical drawing - 2nd ed. - New Delhi S. Chand & Co. 2005 - various pagination
81-219-1431-0
Engineering drawing
621.7:744
textbook of engineering drawing :geometrical drawing - 2nd ed. - New Delhi S. Chand & Co. 2005 - various pagination
81-219-1431-0
Engineering drawing
621.7:744