Sheet metal drafting
Betterley, Melvin L.
Sheet metal drafting - 2nd ed - New York McGraw-Hill Book, 1978 - vi,314 p. 25 cm - .
0-07-005126-70
Sheet-metal work-Pattern-making
Mechanical drawing
621.7:744 Bet(4)
Sheet metal drafting - 2nd ed - New York McGraw-Hill Book, 1978 - vi,314 p. 25 cm - .
0-07-005126-70
Sheet-metal work-Pattern-making
Mechanical drawing
621.7:744 Bet(4)