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, 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.
Japan Center for Asia Historical Materials (JACAR), Minzoku mondai kankei zakken: Yudayajin mondai [Documents on the Issus of Nationalities: The Jewish Issue] B04013207600-10500, 11:391-392. Original in Japanese.