TY  - BOOK
AU  - Walker, John R.
TI  - Exploring drafting: basic fundamentals / 
SN  - 087006195x
U1  - FOR 604.2 W15e 1975 
PY  - 1975///
CY  - Illinois
PB  - The Goodheart-Willcox Co. Inc.
KW  - Technical drawing
N1  - Includes index
ER  -