Follis, K. S. (2012). Building fortress Europe: The Polish-Ukrainian frontier. University of Pennsylvania Press.
芝加哥风格引文Follis, Karolina S. Building Fortress Europe: The Polish-Ukrainian Frontier. Philadelphia: University of Pennsylvania Press, 2012.
MLA引文Follis, Karolina S. Building Fortress Europe: The Polish-Ukrainian Frontier. University of Pennsylvania Press, 2012.
警告：这些引文格式不一定是100％准确.