Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

Brown, Ralph H. Historical Geography of the United States. New York: Harcourt-Brace, 1948.

Cita MLA (9a ed.)

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