Harvey, C. (1992). Selling in a week. Hodder & Stoughton.
Cita Chicago Style (17a ed.)Harvey, Christine. Selling in a Week. London: Hodder & Stoughton, 1992.
Cita MLA (8a ed.)Harvey, Christine. Selling in a Week. Hodder & Stoughton, 1992.
Precaución: Estas citas no son 100% exactas.