TY  - GEN
AU  - Omura, George
TI  - Mastering AutoCAD : release 12 for windows 
SN  - 9812143491
U1  - 670.285 
PY  - 1993///
CY  - Singapore
PB  - Tech Publications
KW  - Manufacturing
KW  - AutoCAD
KW  - Data processing
KW  - Computer applications
ER  -