ROBERT, S., & FLAHERTY, J. E. (1963). Basic facts of U.S. history. Collier Books.
Chicago-čujuhus (17. p.)ROBERT, Sobel, juo John E. FLAHERTY. Basic Facts of U.S. History. New York: Collier Books, 1963.
MLA-čujuhus (9. p.)ROBERT, Sobel, juo John E. FLAHERTY. Basic Facts of U.S. History. Collier Books, 1963.
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