Thư mục Wilhelm Solf

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  • Gray, J.A.C. Amerika Samoa, A History of American Samoa and Its United States Naval Administration. Annapolis: United States Naval Institute. 1960.
  • McKay, C.G.R. Samoana, A Personal Story of the Samoan Islands. Wellington and Auckland: A.H. & A.W. Reed. 1968.
  • Ryden, George Herbert. The Foreign Policy of the United States in Relation to Samoa. New York: Octagon Books, 1975. (Reprint by special arrangement with Yale University Press. Originally published at New Haven: Yale University Press, 1928)