Powe, L. A. S. (1991). The fourth estate and the Constitution: Freedom of the press in America. University of California Press.
芝加哥风格引文Powe, L. A. Scot. The Fourth Estate and the Constitution: Freedom of the Press in America. Berkeley: University of California Press, 1991.
MLA引文Powe, L. A. Scot. The Fourth Estate and the Constitution: Freedom of the Press in America. University of California Press, 1991.
警告：这些引文格式不一定是100％准确.