Cita APA (7a ed.)
Pauline J Lawrence & Goodhart, D. (1968). Concepts in american history. Cambridge books.
Cita Chicago Style (17a ed.)
Pauline J Lawrence y David Goodhart. Concepts in American History. New York: Cambridge books, 1968.
Cita MLA (9a ed.)
Pauline J Lawrence y David Goodhart. Concepts in American History. Cambridge books, 1968.
Precaución: Estas citas no son 100% exactas.