TY  - BOOK
AU  - Yarwood,A.
TI  - An introduction to 3D AutoCAD: releases 12 and 13 
SN  - 0582290910
AV  - TR897.7 Y36 1998
PY  - 1996///
CY  - Harlow, Essex
PB  - Longman
KW  - Computer graphics
KW  - Three-dimensional display systems
KW  - AutoCAD
N1  - On t.p.: Autodesk, registered developer
ER  -