Penniman, H. R. (1974). Britain at the polls: The parliamentary elections of 1974. American Enterprise Institute for Public Policy Research.
Citace podle Chicago (17th ed.)Penniman, Howard Rae. Britain at the Polls: The Parliamentary Elections of 1974. Washington, D.C: American Enterprise Institute for Public Policy Research, 1974.
Citace podle MLA (9th ed.)Penniman, Howard Rae. Britain at the Polls: The Parliamentary Elections of 1974. American Enterprise Institute for Public Policy Research, 1974.
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