Sheet metal drafting /
Betterley, Melvin L.
Sheet metal drafting / Melvin L. Betterley. - 2nd ed. - McGraw-Hill, New York : Gregg Division, 1978. - vi, 314 p. : ill. ; 24 cm.
Includes index.
0070051267
Sheet--metal work--Pattern--Making.
Mechanical drawing.
Sheet metal drafting / Melvin L. Betterley. - 2nd ed. - McGraw-Hill, New York : Gregg Division, 1978. - vi, 314 p. : ill. ; 24 cm.
Includes index.
0070051267
Sheet--metal work--Pattern--Making.
Mechanical drawing.