Zaiss, C. D., & Gordon, T. (1993). Sales effectiveness training: The breakthrough method to become partners with your customers. Dutton.
Citação do estilo Chicago (17ª ed.)Zaiss, Carl D., e Thomas Gordon. Sales Effectiveness Training: The Breakthrough Method to Become Partners with Your Customers. New York: Dutton, 1993.
Citação MLA (8ª ed.)Zaiss, Carl D., e Thomas Gordon. Sales Effectiveness Training: The Breakthrough Method to Become Partners with Your Customers. Dutton, 1993.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.