TY  - BOOK
AU  - Jensen , C.
AU  - Helsel, D. J.
TI  - Drawing workbook for engineering : : drawing and design
SN  - 0028018818
AV  - TA175.J4 1997 
PY  - 1997///
CY  - U S A 
PB  - McGraw hill
KW  - Engineering design
KW  - Drawing and design
ER  -