Dyfyniad 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.

Dyfyniad Arddull 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.

Dyfyniad 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.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.