TY  - BOOK
AU  - Horemis,Spyros
TI  - Optical and geometrical patterns and designs: 92 original plates 
SN  - 0486222144 (pbk.) :
U1  - 745.4 
PY  - 1970///
CY  - New York
PB  - Dover Publications
KW  - Geometrical drawing
ER  -