Jefferson, M., Pinckney, J., & Skinner, E. P. (1974). Roots of time: A portrait of African life and culture ([1st ed.].). Zenith Books.
芝加哥风格引文Jefferson, Margo, Jerry Pinckney, 与 Elliott Percival Skinner. Roots of Time: A Portrait of African Life and Culture. [1st ed.]. Garden City, N.Y.: Zenith Books, 1974.
MLA引文Jefferson, Margo, et al. Roots of Time: A Portrait of African Life and Culture. [1st ed.]. Zenith Books, 1974.
警告：这些引文格式不一定是100％准确.