Ellet William. (2007). Case Study Handbook: How to Read , Diacuss and Write Persuasively About Cases. HBR.
Lua i Stíl Chicago (17ú heag.)Ellet William. Case Study Handbook: How to Read , Diacuss and Write Persuasively About Cases. USA: HBR, 2007.
Lua MLA (9ú heag.)Ellet William. Case Study Handbook: How to Read , Diacuss and Write Persuasively About Cases. HBR, 2007.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.