Dyckman, Dan. Hidden dimensions use your deep vision to solve mazes, riddles, and other perplexing puzzles Dan Dyckman. - 1st ed. - New York Harmony Books, c - 64 p. : ill. (some col.) 27 cm. ISBN: 0517599945 9780517599945 Subjects--Topical Terms: PuzzlesStereoscopic views LC Class. No.: GV1501 / .D93 1994