Schrank, J. (1991). Understanding mass media (4th ed.). National textbook.
芝加哥风格引文Schrank, Jeffrey. Understanding Mass Media. 4th ed. Illinois: National textbook, 1991.
MLA引文Schrank, Jeffrey. Understanding Mass Media. 4th ed. National textbook, 1991.
警告：这些引文格式不一定是100％准确.