Wayback Machine.] President Roosevelt's Campaign To Incite War in Europe: THE SECRET POLISH DOCUMENTS [Архівовано 14 липня 2010 у Wayback Machine.](англ
Uniwersytetu Wrocławskiego 2005 ISBN 83-229-2569-7 Polish military leaders during Polish-BolshevikWar. Архів оригіналу за 3 березня 2016. Процитовано 8
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