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Systemy wzgle̜dnie odosobnione i ich modele w ekonomii
Malawski, Andrzej, (1992)
Bodenschutz als Planungsaufgabe
Kühner, Sabine, (1993)
Handbook of consumer behavior
Robertson, Thomas S., (1991)
The system of economic relations as a whole
Levine, David P., (1981)
Welfare, right, and the state : a framework for thinking
Levine, David P., (2008)
Levine, David P., (2006)