Ellet, W. (2007). The Case Study Handbook. HBS.
Cita Chicago (17th ed.)Ellet, William. The Case Study Handbook. Boston: HBS, 2007.
Cita MLA (9th ed.)Ellet, William. The Case Study Handbook. HBS, 2007.
Atenció: Aquestes cites poden no estar 100% correctes.