Garraghan, G. J. (1934). Chapters in frontier history: Research studies in the making of the West. The Bruce Pub. Co..
Chicago-referens (17:e uppl.)Garraghan, Gilbert J. Chapters in Frontier History: Research Studies in the Making of the West. Milwaukee: The Bruce Pub. Co., 1934.
MLA-referens (8:e uppl.)Garraghan, Gilbert J. Chapters in Frontier History: Research Studies in the Making of the West. The Bruce Pub. Co., 1934.
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