Shapiro & Sviokla. (1993). KEEPING customers. Harvard Business School Press.
Chicago Style (17th ed.) CitationShapiro and Sviokla. KEEPING Customers. Boston: Harvard Business School Press, 1993.
MLA (9th ed.) CitationShapiro and Sviokla. KEEPING Customers. Harvard Business School Press, 1993.
Warning: These citations may not always be 100% accurate.