APA (7th ed.) Citation

Brown, R. H. (1948). Historical geography of the United States. Harcourt, Brace & World.

Chicago Style (17th ed.) Citation

Brown, Ralph H. Historical Geography of the United States. New York [u.a.]: Harcourt, Brace & World, 1948.

MLA (9th ed.) Citation

Brown, Ralph H. Historical Geography of the United States. Harcourt, Brace & World, 1948.