National Archives and Records Administration II, Records of the Department of State relating to internal affairs of Poland 1916-1944, Washington 1981 (Microfilm-Edition): Doc. 860C.4016/624, p. 1f., 6f. Original in English.
National Archives and Records Administration II, Records of the Department of State relating to internal affairs of Hungary 1930-1944, Washington 1983 (Microfilm-Edition): Doc. 864.4016/169, p. 1-3. Original in English.