Author,Title,Edition,Publisher,Year,Series,Number,ISBN,ISSN,URL
"Hunczak, Taras and Von der Heide, John T. and Harvard Ukrainian Research Institute and Ukrainian Academy of Arts and Sciences in the United States","The Ukraine, 1917-1921 : a study in revolution",,Distributed by Harvard University Press for the Harvard Ukrainian Research Institute,1977,Monograph series,,0674920090,,https://cir.nii.ac.jp/crid/1970586434903111170