TY  - BOOK
AU  - Perkins, P. E
TI  - Hands- on CAD: An introduction to Computer-aided Draughting and Design, With Practical Assignments 
SN  - 0304315648
AV  - T385 .P3  1989
PY  - 1989///
CY  - London
PB  - Cassel Publishers LTD
KW  - Cmputer aided and design
KW  - Technology
N1  - includes index
ER  -