ROBERT, S., & FLAHERTY, J. E. (1963). Basic facts of U.S. history. Collier Books.
芝加哥风格引文ROBERT, Sobel, 与 John E. FLAHERTY. Basic Facts of U.S. History. New York: Collier Books, 1963.
MLA引文ROBERT, Sobel, 与 John E. FLAHERTY. Basic Facts of U.S. History. Collier Books, 1963.
警告：这些引文格式不一定是100％准确.