O`Connor, David
Hume on religion
Routledge, 2000
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Mounce, H.O
Hume's narturalism
Routledge , 1999
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Hendel, Charles W.
Studies in the philosophy of David Hume
The Bobbs-Merrill, 1963
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Fuller, Lon L.
The morality of law
Yale University Press, 1964
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Fuller, Lon L.
The morality of law
Yale University Press, 1974
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