TY  - BOOK
AU  - Cassin,Craig
TI  - Visual illusions in motion with moiré screens: 60 patterns and 3 plastic screens 
T2  - Dover Pictorial Archive Series
SN  - 0486295710
U1  - 701.8 CAS 
PY  - 1997///
CY  - Mineola, N.Y.
PB  - Dover Publications
KW  - Optical illusions
N1  - Three plastic screens in back pocket
ER  -