Cohen, W. A. .. (1991). The entrepreneur and small business marketing problem solver. New York: John Wiley.
Trích dẫn kiểu ChicagoCohen, William A. The Entrepreneur and Small Business Marketing Problem Solver. New York: John Wiley, 1991.
Deismireacht MLACohen, William A. The Entrepreneur and Small Business Marketing Problem Solver. New York: John Wiley, 1991.
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