TY  - BOOK
AU  - Seckel, Al
TI  - Visual illusions
SN  - 1903230160
U1  - 740 
PY  - 2006///
CY  - Harleston
PB  - Tobar
KW  - Optical illusions - Pictorial works
N1  - Previous ed. published as: Incredible visual illusions. London : Arcturus, 2004
ER  -