TY  - BOOK
AU  - Gaines,Keith
TI  - Can you believe your eyes: the strange world of optical illusions 
T2  - Web Spiders
SN  - 0199175306
PY  - 2002///
CY  - Oxford
PB  - Oxford University Press
KW  - Illusions
KW  - sears
KW  - Optical illusions
N1  - Includes index
ER  -