TY  - BOOK
AU  - Davies,B.L.
AU  - Robotham,A.J.
AU  - Yarwood,A.
TI  - Computer-aided drawing and design
SN  - 0442312911
U1  - T/385 
PY  - 1986///
CY  - London
PB  - Chapman & Hall
KW  - Computer graphics.
KW  - Computer-aided design.
ER  -