Kovalev E.F. Iz istorii vliyaniya Oktyabrskoy sotsialisticheskoy revolyutsii na Kitay (1917–1923 gg.). Chast pervaya i vtoraya (komplekt)./Kovalev E.F. From the history of the influence of the October Socialist Revolution on China (1917-1923). Parts one and two (set). In Russian - landofmagazines.com

TransliterationKovalev E.F. Iz istorii vliyaniya Oktyabrskoy sotsialisticheskoy revolyutsii na Kitay (1917–1923 gg.). Chast pervaya i vtoraya (komplekt).

In EnglishKovalev E.F. From the history of the influence of the October Socialist Revolution on China (1917-1923). Parts one and two (set). In Russian

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