TY  - BOOK
AU  - Omura, George  .
TI  - Mastering Autocad release 12 / 
SN  - 81-7029-254-9
U1  - 005.369 
PY  - 1994///
CY  - New delhi : 
PB  - BPB Publications ,B-14 , 
N1  - *CSS
ER  -