Виднянский, Степaн Вaсилевич. Internatsional'noye sblizheniye rabochego klassa stran sotsyalisticheskogo sodruzhestva S. V. Vidnyanskiy. - Kiev : Nauk. dumka, 1989. - 348 [1] p. ; ISBN: RUSSIAN2360 Subjects--Topical Terms: Working class Dewey Class. No.: 331.110947 / In