Appleton, J. B. (1925). The Iron and steel industry of the Calumet district: A study in economic geography. Univ. of Illinois.
Chicago-Zitierstil (17. Ausg.)Appleton, John B. The Iron and Steel Industry of the Calumet District: A Study in Economic Geography. Urbana, Ill.: Univ. of Illinois, 1925.
MLA-Zitierstil (8. Ausg.)Appleton, John B. The Iron and Steel Industry of the Calumet District: A Study in Economic Geography. Univ. of Illinois, 1925.
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