Franck, H. A. (1913). Zone policeman 88: A close range study of the Panama canal and its workers. The Century co..
Citace podle Chicago (17th ed.)Franck, Harry Alverson. Zone Policeman 88: A Close Range Study of the Panama Canal and Its Workers. New York: The Century co., 1913.
Citace podle MLA (8th ed.)Franck, Harry Alverson. Zone Policeman 88: A Close Range Study of the Panama Canal and Its Workers. The Century co., 1913.
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