Current, R. N., Williams, T. H., & Freidel, F. (1971). American history: A survey (3d ed.). Knopf.
芝加哥风格引文Current, Richard N., T. Harry Williams, 与 Frank Freidel. American History: A Survey. 3d ed. New York: Knopf, 1971.
MLA引文Current, Richard N., et al. American History: A Survey. 3d ed. Knopf, 1971.
警告：这些引文格式不一定是100％准确.