Spencer, Herbert
The man versus the state
Watts & Co., 1950
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MacIver, Robert M.
The modern state
Oxford, 1926
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Chard, Chester S.
Man in prehistory
McGraw-Hill, 1975
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Seckler-Hudson, Catheryn
The United State of America : a government by the People
United State Information Service, 1959
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Teilhard de Chardin, Pierre
The phenomenon of man with an introduction
Collins, 1960
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