Brisco, N. A. (1923). Fundamentals of salesmanship. D. Appleton and Company.
Cita Chicago Style (17a ed.)Brisco, Norris A. Fundamentals of Salesmanship. New York [etc.]: D. Appleton and Company, 1923.
Cita MLA (9a ed.)Brisco, Norris A. Fundamentals of Salesmanship. D. Appleton and Company, 1923.
Precaución: Estas citas no son 100% exactas.