ROBERT, S., & FLAHERTY, J. E. (1963). Basic facts of U.S. history. Collier Books.

ROBERT, Sobel, and John E. FLAHERTY. Basic Facts of U.S. History. New York: Collier Books, 1963.

ROBERT, Sobel, and John E. FLAHERTY. Basic Facts of U.S. History. Collier Books, 1963.