Παραπομπή APA

Cespedes, F. V. Concurrent Marketing: Integrating product, sales and services. Harvard Business School Press.

Παραπομπή Chicago Style

Cespedes, Frank V. Concurrent Marketing: Integrating Product, Sales and Services. Boston: Harvard Business School Press.

Παραπομπή MLA

Cespedes, Frank V. Concurrent Marketing: Integrating Product, Sales and Services. Harvard Business School Press.