Hindman, D. A. Thousand eight hundred riddles enigmas and conundrums. Dover Publications.
Chicago Edition CitationHindman, Darwin A. Thousand Eight Hundred Riddles Enigmas and Conundrums. New York: Dover Publications.
Deismireacht MLAHindman, Darwin A. Thousand Eight Hundred Riddles Enigmas and Conundrums. Dover Publications.
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