Ayer, A. (1984). Freedom and morality and other essays. Clarendon Press.
Tohutoru Kātū Chicago (17th ed.)Ayer, A.J. Freedom and Morality and Other Essays. Oxford: Clarendon Press, 1984.
Tohutoro MLA (9th ed.)Ayer, A.J. Freedom and Morality and Other Essays. Clarendon Press, 1984.
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