Schuster, C. P. (1996). Global business planning for sales and negotiations. New York: The Dryden Press.
Trích dẫn kiểu ChicagoSchuster, Camille P. Global Business Planning for Sales and Negotiations. New York: The Dryden Press, 1996.
Deismireacht MLASchuster, Camille P. Global Business Planning for Sales and Negotiations. New York: The Dryden Press, 1996.
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