英領アフリカ植民地対外関係文書1910～1929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 British Africa and Other States, and with the United States, 1910 - 1929. (D.F.748, 711.48A-Y). NARA, RG59. 35mm silver positive microfilm 2 reels.