Miracle Math — Harry Lorayne — Barnes & Noble Books 1992 reprint of the 1966 original, ISBN 0-88029-876-6 (hardcover). Lorayne: good, no DJ as issued. Mathematical Mysteries: The Beauty and Magic of Numbers — Calvin C. Clawson — Plenum Trade, ISBN 0-306-45404-1 (hardcover w/ DJ).
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