Kuesel, H. (1959). How to sell against tough competition. Prentice-Hall.
Cita Chicago Style (17a ed.)Kuesel, Harry. How to Sell Against Tough Competition. Englewood Cliffs, New Jersey: Prentice-Hall, 1959.
Cita MLA (9a ed.)Kuesel, Harry. How to Sell Against Tough Competition. Prentice-Hall, 1959.
Precaución: Estas citas no son 100% exactas.