Pettigrew, T. F. (1964). A profile of the Negro American. Van Nostrand.
芝加哥风格引文Pettigrew, Thomas F. A Profile of the Negro American. Princeton, N.J.: Van Nostrand, 1964.
MLA引文Pettigrew, Thomas F. A Profile of the Negro American. Van Nostrand, 1964.
警告：这些引文格式不一定是100％准确.