Haas, W. H. (1940). The American empire: A study of the outlying territories of the United States. The University of Chicago Press.
Citace podle Chicago (17th ed.)Haas, William Herman. The American Empire: A Study of the Outlying Territories of the United States. Chicago, Ill: The University of Chicago Press, 1940.
Citace podle MLA (9th ed.)Haas, William Herman. The American Empire: A Study of the Outlying Territories of the United States. The University of Chicago Press, 1940.
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