Cita APA

Parkes, H. B. (1968). United States of America: A History (3rd ed.). Scientific book agency.

Citación estilo Chicago

Parkes, Henry Bamford. United States of America: A History. 3rd ed. Calcutta: Scientific book agency, 1968.

Cita MLA

Parkes, Henry Bamford. United States of America: A History. 3rd ed. Scientific book agency, 1968.