Trích dẫn APA

Frei, F., & Frances Frei; Anne Morriss. Uncommon service: How to win by putting customers at the core of your business. Boston, Mass: Harvard Business Review Press.

Trích dẫn kiểu Chicago

Frei, Frances, và Frances Frei; Anne Morriss. Uncommon Service: How to Win By Putting Customers At the Core of Your Business. Boston, Mass: Harvard Business Review Press.

Trích dẫn MLA

Frei, Frances, và Frances Frei; Anne Morriss. Uncommon Service: How to Win By Putting Customers At the Core of Your Business. Boston, Mass: Harvard Business Review Press.

Cảnh báo: Các trích dẫn này có thể không phải lúc nào cũng chính xác 100%.