ROBERT, S., & FLAHERTY, J. E. (1963). Basic facts of U.S. history. Collier Books.
Dyfyniad Arddull ChicagoROBERT, Sobel, and John E. FLAHERTY. Basic Facts of U.S. History. New York: Collier Books, 1963.
Dyfyniad MLAROBERT, Sobel, and John E. FLAHERTY. Basic Facts of U.S. History. Collier Books, 1963.
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