"President Roosevelt's Secret Pact with Japan," Tyler Dennett, The Current History Magazine, October 1924, [1] （页面存档备份，存于互联网档案馆）
jstor.org
See Raymond A. Esthus, "The Taft-Katsura Agreement - Reality or Myth?" Journal of Modern History 1959 31(1): 46-51 in JSTOR （页面存档备份，存于互联网档案馆）; and Jongsuk Chay, "The Taft-Katsura Memorandum Reconsidered," Pacific Historical Review, Vol. 37, No. 3 (Aug., 1968), pp. 321-326 in JSTOR （页面存档备份，存于互联网档案馆）
"President Roosevelt's Secret Pact with Japan," Tyler Dennett, The Current History Magazine, October 1924, [1] （页面存档备份，存于互联网档案馆）
See Raymond A. Esthus, "The Taft-Katsura Agreement - Reality or Myth?" Journal of Modern History 1959 31(1): 46-51 in JSTOR （页面存档备份，存于互联网档案馆）; and Jongsuk Chay, "The Taft-Katsura Memorandum Reconsidered," Pacific Historical Review, Vol. 37, No. 3 (Aug., 1968), pp. 321-326 in JSTOR （页面存档备份，存于互联网档案馆）
