National Archives and Records Administration II, RG 59, Records of the U. S. Department of State relating to internal affairs of Bulgaria 1910-1944, Washington, 1982 (Microfilm): Doc. 874.4016/ill. Original in English.
National Archives and Records Administration II, RG 59, Records of the U. S. Department of State relating to internal affairs of Poland 1916-1944, Washington, 1981 (Microfilm): Doc. 860C.4016/617. Original in English.
National Archives and Records Administration II, RG 59, Records of the U. S. Department of State relating to internal affairs of Czechoslovakia 1910-1944, Washington, 1982 (Microfilm): Doc. 860F.4016/82. Original in English.
National Archives and Records Administration II, RG 59, Records of the U. S. Department of State relating to internal affairs of Czechoslovakia 1910-1944, Washington, 1982 (Microfilm): Doc. 860F.4016/83. Original in English.