Citace podle APA

Goetzmann, W. H. (1971). Exploration and empire: The explorer and the scientist in the winning of the American West. New York: Alfred A. Knopf.

Styl Chicago

Goetzmann, William H. Exploration and Empire: The Explorer and the Scientist in the Winning of the American West. New York: Alfred A. Knopf, 1971.

Citace podle MLA

Goetzmann, William H. Exploration and Empire: The Explorer and the Scientist in the Winning of the American West. New York: Alfred A. Knopf, 1971.

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