Penier, I. (2015) “Jerzy Sobieraj. ‘Collisions of Conflict. Studies in American History and Culture, 1820-1920’. Peter Lang, Frankfurt am Main: 2014. pp. 149”., International Studies. Interdisciplinary Political and Cultural Journal, 17(1), pp. 161–165. doi: 10.1515/ipcj-2015-0012.