Freidel, F. B. 1., & Showman, R. K. (1974). Harvard guide to American history (revised edition.). Cambridge, Massachusetts: The Belknap Press of Harvard University Press.
Chicago Style CitationFreidel, Frank Burt 1916-1993, and Richard K. Showman. Harvard Guide to American History. revised edition. Cambridge, Massachusetts: The Belknap Press of Harvard University Press, 1974.
MLA CitationFreidel, Frank Burt 1916-1993, and Richard K. Showman. Harvard Guide to American History. revised edition. Cambridge, Massachusetts: The Belknap Press of Harvard University Press, 1974.
Warning: These citations may not always be 100% accurate.