Cassinelli, C.W.
The politics of freedom: an analysis of the modern democratic state / by C.W. Cassinelli
University of Washington Press , 1961
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Simon, Yves R.
Philosophy of democratic government / Yves R. Simon
The University of Chicago Press, 1951
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Laski, Harold J.
Liberty in the modern state
George Allen and Unwin, 1948
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Laski, Harold J.
Liberty in the modern state
Penguin Books, 1937
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Lindsay, A.D.
The modern democratic state
Oxford University Press, 1955
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