TY  - BOOK
AU  - Omura, George
AU  - Callori, B. Robert
TI  - Autocad release 12 instant reference
SN  - 81-7029-501-7
U1  - 006.6(ACAD) 
PY  - 1995///
CY  - New Delhi
PB  - BPB Publications
ER  -