Parkes, . H. B. (1968). The United States of America: A History. Scientific Book.
Chicago-čujuhus (17. p.)Parkes, Henry Bamford. The United States of America: A History. Calcutta: Scientific Book, 1968.
MLA-čujuhus (9. p.)Parkes, Henry Bamford. The United States of America: A History. Scientific Book, 1968.
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