TY  - BOOK
AU  - Leach 
AU  - Duffy, Bruce A.
TI  - AutoCad 2002 assistant 
SN  - 0072513683 
U1  - 620.004202855369 LEA 2002 
PY  - 0000///[year of publication not identified]
KW  - Computer graphics
N1  - Includes index p.122 - 123
ER  -