Bizam D.,  Gertsog Ya. Igra i logika. 85 logicheskikh zadach./Bizam D.,  Duke J. Game and Logic. 85 logical problems. In Russian - landofmagazines.com

TransliterationBizam D., Gertsog Ya. Igra i logika. 85 logicheskikh zadach.

In EnglishBizam D., Duke J. Game and Logic. 85 logical problems. In Russian

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