APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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