TY  - BOOK
AU  - Block,J.R.
TI  - Seeing double: over 200 mind-bending illusions 
SN  - 0415934826 (pbk. : alk. paper)
AV  - QP495 .B563 2002
U1  - 152.14/8 21
PY  - 2002///
CY  - New York
PB  - Routledge
KW  - Optical illusions
KW  - Pictorial works
N1  - Includes bibliographical references and index
UR  - http://www.loc.gov/catdir/enhancements/fy0651/2002009235-d.html
ER  -