TY  - BOOK
AU  - Jenson, Cecil:Helsel, Jay D
TI  - Drawing workbook for engineering drawing and design
SN  - 0-02-801881-8
U1  - 604.2 JEN 
PY  - 1997///
CY  - NEWYORK
PB  - GLENCO, MCGRAW HILL
KW  - MWCHANICAL DRAWING.ENGINEERING DESIGN
ER  -