Korwin-Rhodes, Marta. The mask of warriors; the siege of Warsaw, September 1939. - [New York] Libra [1964] - 191 p. 22 cm. LCCN: 64025187 Subjects--Geographic Terms: Warsaw (Poland)--History--Siege, 1939. LC Class. No.: D765.2.W3 / K62 Dewey Class. No.: 940.54763438