TY  - BOOK
AU  - French, Thomas E.
AU  - Svensen, Carl L.
AU  - Helsel, Jay D.
AU  - Urbanick, Byron
TI  - Mechanical drawing [9th ed.]
SN  - 0070223130
U1  - 604.2 
PY  - 1980///
CY  - New York
PB  - Mcgraw-Hill
KW  - Mechanical drawing
ER  -