Wolf, C. (2008). Looking backward and forward: Policy issues in the twenty-first century. Hoover Institution Press.
Citace podle Chicago (17th ed.)Wolf, Charles. Looking Backward and Forward: Policy Issues in the Twenty-first Century. Stanford, Calif.: Hoover Institution Press, 2008.
Citace podle MLA (9th ed.)Wolf, Charles. Looking Backward and Forward: Policy Issues in the Twenty-first Century. Hoover Institution Press, 2008.
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