BEHEI , Ihor, and Inna KRAVCHUK. “‘UNION OF UKRAINIAN ORGANIZATIONS IN AMERICA’: PREREQUISITES OF ITS CREATION, STAGES AND DIRECTIONS OF ACTIVITY (1922 – 1940)”. EAST EUROPEAN HISTORICAL BULLETIN, no. 28 (September 23, 2023): 134–142. Accessed September 1, 2024. http://eehb.dspu.edu.ua/article/view/287539.