Walker, John R.
Exploring drafting: basic fundamentals / by John R. Walker. - South Holland, Ill. : Goodheart-Willcox, 1972. - 320 p. : ill.
0870061274
79162277
Mechanical drawing.
604.2
Exploring drafting: basic fundamentals / by John R. Walker. - South Holland, Ill. : Goodheart-Willcox, 1972. - 320 p. : ill.
0870061274
79162277
Mechanical drawing.
604.2