Posner, Richard A.
The problematics of moral and legal theory
Harvard University Press, 2002
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Sadurski, Wojciech
Moral pluralism and legal neutrality
Kluwer Academic, 1990
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Friedmann, Wolfgang, 1907-1972
Legal theory
Stevens & Sons, 1949
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Friedmann, Wolfgang, 1907-1972
Legal theory
Columbia University Press, 1967
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Friedman, Milton, 1912-2006
Legal theory
Steven & Sons, 1953
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