Cita APA (7a ed.)
Manning, G. L., & Reece, B. L. (1992). Selling today: <an> extension of the marketing concept (5. ed.). Allyn and Bacon.
Cita Chicago Style (17a ed.)
Manning, Gerald L., y Barry L. Reece. Selling Today: <an> Extension of the Marketing Concept. 5. ed. Boston: Allyn and Bacon, 1992.
Cita MLA (9a ed.)
Manning, Gerald L., y Barry L. Reece. Selling Today: <an> Extension of the Marketing Concept. 5. ed. Allyn and Bacon, 1992.
Precaución: Estas citas no son 100% exactas.