TY  - BOOK
AU  - Tickoo, Sham .
AU  - Singh,Vivek Kumar  .
AU  - Swapna,D  .
TI  - AutoCAD 2009 for engineersand designers / 
U1  - 005.369 
PY  - 2009///
CY  - New Delhi : 
PB  - Dreamtech Press , 
ER  -