McDonald, M., & Leppard, J. (1988). Effective industrial selling. Heinemann Professional.
Citación estilo ChicagoMcDonald, Malcolm, and John Leppard. Effective Industrial Selling. Oxford: Heinemann Professional, 1988.
Cita MLAMcDonald, Malcolm, and John Leppard. Effective Industrial Selling. Heinemann Professional, 1988.
Warning: These citations may not always be 100% accurate.