TY  - BOOK
AU  - Yoshikawa, H (Ed.)
AU  - Warman, E A (Ed.)
TI  - Design theory for cad
SN  - 0-444-70151-6
PY  - 1987///
CY  - Amsterdam: 
PB  - North-Holland, 
KW  - CAD
KW  - Geometric reasoning
ER  -