TY  - BOOK
AU  - Paraquin,Karl Heinz
TI  - The world's best optical illusions
SN  - 0806966440 (pbk.) :
AV  - QP495 .P3713 1987
U1  - 152.1/48 19
PY  - 1987///, c1977
CY  - New York
PB  - Sterling Pub. Co.
KW  - Optical illusions
KW  - Juvenile literature
KW  - Puzzles
N1  - Translation of: Schummelbilder; First paperback ed. published under title: Optical illusion puzzles; Includes index
N2  - A collection of over 100 optical illusion puzzles, with explanations of the reasons for their effects
UR  - http://www.loc.gov/catdir/description/ste021/87013885.html
UR  - http://www.archive.org/details/worldsbestoptica00para
UR  - http://www.openlibrary.org/books/OL2385001M
ER  -