TY  - BOOK
AU  - Dyckman, Dan. 
TI  - Hidden dimensions : use your deep vision to solve mazes, riddles, and other perplexing puzzles 
SN  - 0517599945 9780517599945
AV  - GV1501 .D93 1994
CY  - New York 
PB  - Harmony Books, c
KW  - Puzzles
KW  - Stereoscopic views
ER  -