Norton, M. B. (1990). A people and a nation: A history of the United States (3. ed.). Houghton Mifflin.
Cita Chicago Style (17a ed.)Norton, Mary Beth. A People and a Nation: A History of the United States. 3. ed. Boston [u.a.]: Houghton Mifflin, 1990.
Cita MLA (9a ed.)Norton, Mary Beth. A People and a Nation: A History of the United States. 3. ed. Houghton Mifflin, 1990.
Precaución: Estas citas no son 100% exactas.