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The 38th International Puzzle Party. IPP 38 San Diego [cover title] by Baxter, Nick, et al.: (2018) | Rulon-Miller Books (ABAA / ILAB)
국제 퍼즐 파티(IPP, International Puzzle Party)와 국제 퍼즐 디자인 대회(IPDC, International Puzzle Design Competition)
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35th International Puzzle Party 2015 by Kuehner, Brett, & Rob Stegmann, co-hosts | Search for rare books | ABAA
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