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Social class in American sociology
Gordon, Milton Myron, (1963)
Class structure and income determination
Wright, Erik Olin, (1979)
Class and class conflict in industrial society
Dahrendorf, Ralf, (1965)
Social class system revisited
Hendon, Donald W., (1988)
WINNING THE BATTLE FOR YOUR CUSTOMER
Hendon, Donald W., (1985)
Classic failures in product marketing : marketing principles violations and how to avoid them
Hendon, Donald W., (1989)