Spencer, Herbert
The man versus the state
Watts & Co., 1950
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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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Chard, Chester S.
Man in prehistory / Chester S. Chard
McGraw-Hill, 1975
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Origins of the state : the anthropology of political evolution
edited by Ronald Cohen and Elman R. Service
Institute for the Study of Human Issues, 1978
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State, private life and political change / Edited by Lynn Jamieson
Macmillan, 1990
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