TY  - BOOK
AU  - Nelson,John A.
TI  - Drafting for trades & industry: mechanical & electronic 
SN  - 0827318464
AV  - T353 .N44 1979
U1  - 621/.022/1 19
PY  - 1979///
CY  - Albany
PB  - Delmar Publishers
KW  - Electronic drafting
KW  - Machinery
KW  - Drawings
KW  - Mechanical drawing
ER  -