Penniman, H. R. (1974). Britain at the polls: The parliamentary elections of 1974. American Enterprise Institute for Public Policy Research.
芝加哥风格引文Penniman, Howard Rae. Britain at the Polls: The Parliamentary Elections of 1974. Washington, D.C: American Enterprise Institute for Public Policy Research, 1974.
MLA引文Penniman, Howard Rae. Britain at the Polls: The Parliamentary Elections of 1974. American Enterprise Institute for Public Policy Research, 1974.
警告：这些引文格式不一定是100％准确.