Moore, Russell F.
Modern constitutions
Littlefield, Adams, 1957
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Andrews, William G.
Constitutions and constitutionalism
D.van Nostrand Company,Inc., 1968
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Gibson, William M.
The Constitutions of Colombia
Duke University Press, 1948
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Wheare, K. C.
Modern constitutions
Oxford University Press, 1975
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Whitlam, E.G.
On Australias constitutions
Widescope, 1977
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