Walter, Eugene Victor
Placeways : a theory of human environment
Chapel Hill, 1988
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Treshow, Michael
The Human environment
McGraw-Hill, 1976
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The human environment
edited by Jonathan Rigg
Archipelago Press, 1996
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Habermas, Jurgen
Theory and Practice
Heinemann, 1974
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Knapp, Brian
Challenge of the human environment
Longman House, 1992
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