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[Besprechung von:] Inequality and poverty. Ed. by Edward C. Budd. New York 1967. Seligman, Ben Baruch: Permanent poverty. An American syndrome. Chicago 1968
Thurow, Lester C., (1968)
American poverty : rural and urban
Seligman, Ben Baruch, (1968)
Automation and the unions
Seligman, Ben Baruch, (1965)