TY  - BOOK
ED  - ASCENT-Centre of Technical Knowledge 
TI  - AutoCAD2 2011: update fo AutoCAD 2009/2010 users revisio 1.0 
AV  - T385 .A98 2010 
PY  - 2010///
CY  - Charlottesville,VA
PB  - ASCENT cente for technical knowledge
ER  -