ロシア・ソ連の対外関係 1910～1944年／米国国立公文書館（NARA）所蔵　米国国務省機密文書
Records of the Dept. of State relating to Political Relations between Russia and the Soviet Union and Other States, 1910 - 1944. (D.F.761) NARA, RG59. 35mm silver positive microfilm 38 reels.