Файл:Tangutstkotibetskaya okraina Kitaya i Tsentralnaya Mongoliya 2 tom.pdf

Това произведение е обществено достояние в държавите, в които срокът на авторското право е 70 години или по-малко след смъртта на автора.

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It was published on territory of the Russian Empire (Russian Republic) except for territories of the Grand Duchy of Finland and Congress Poland before 7 November 1917 and wasn't re-published for 30 days following initial publications on the territory of Soviet Russia or any other states.

The Russian Federation (early RSFSR, Soviet Russia) is the historical heir but not legal successor of the Russian Empire.

Това произведение е обществено достояние в Съединените американски щати, защото е било публикувано преди 1 януари 1924 година.