TY  - BOOK
AU  - singh, vishnu priya
AU  - singh, vishnu priya
TI  - auto cad 2006,2008.2009 
U1  - 005.12 sin 
PY  - 2010///
CY  - newdelhi
PB  -  computer publication ltd
KW  - computer, autocad
N2  - Available
ER  -