Sheet metal drafting /
Betterley, Melvin L.
Sheet metal drafting / Melvin L. Betterley - New York McGraw-Hill 1961 - 314p. ill. 25cm.
0070051267 RM303.98
Mechanical drawing
Sheet-metal work
Sheet metal drafting / Melvin L. Betterley - New York McGraw-Hill 1961 - 314p. ill. 25cm.
0070051267 RM303.98
Mechanical drawing
Sheet-metal work