APA-čujuhus (7. p.)
Carroll, P. N., & Noble, D. W. (1988). The free and the unfree: A new history of the United States (2nd ed.). Penguin.
Chicago-čujuhus (17. p.)
Carroll, Peter N., juo David W. Noble. The Free and the Unfree: A New History of the United States. 2nd ed. New York: Penguin, 1988.
MLA-čujuhus (9. p.)
Carroll, Peter N., juo David W. Noble. The Free and the Unfree: A New History of the United States. 2nd ed. Penguin, 1988.
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