Harold Innis. Staples, Markets and Cultural Change: Selected Essays / ed. Daniel Drache. Montreal, 1995.

Richard White. «It’s Your Misfortune and None of My Own»: A History of the American West. Norman, OK, 1991; Elliott West. The Contested Plains: Indians, Goldseekers, & the Rush to Colorado. Lawrence, KS, 1998; D. W. Meinig. The Shaping of America: A Geographical Perspective on 500 Years of History. 4 vols. New Haven, CT, 1986–2004; William Cronon. Nature’s Metropolis: Chicago and the Great West. New York, 1991.