TY  - BOOK
AU  - Head, George O; Pietra, Charles A; Segal, Kenneth J L.
TI  - Autocad 3D book: covers through autocad release 13 for dos and windows: Covers through autocad release 13 for dos and windows
SN  - 8175150602
U1  - 620.00420285 HEAG 
PY  - 1996///
CY  - New Delhi
PB  - Galgotia Publications Pvt Ltd
KW  - Autocad
ER  -