Cita APA (7a ed.)
Carroll, P. N., & Noble, D. W. (1988). The free and the unfree: A new history of the United States (2nd ed.). Penguin.
Cita Chicago Style (17a ed.)
Carroll, Peter N., y David W. Noble. The Free and the Unfree: A New History of the United States. 2nd ed. New York: Penguin, 1988.
Cita MLA (9a ed.)
Carroll, Peter N., y David W. Noble. The Free and the Unfree: A New History of the United States. 2nd ed. Penguin, 1988.
Precaución: Estas citas no son 100% exactas.