Cespedes, F. V. Concurrent Marketing: Integrating product, sales and services. Harvard Business School Press.
Čikaški stil citiranjaCespedes, Frank V. Concurrent Marketing: Integrating Product, Sales and Services. Boston: Harvard Business School Press.
MLA način citiranjaCespedes, Frank V. Concurrent Marketing: Integrating Product, Sales and Services. Harvard Business School Press.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.