Eoston, G. (1982). Learning from case studies. Simon & Schuster.
Lua i Stíl Chicago (17ú heag.)Eoston, Geoff. Learning from Case Studies. Simon & Schuster, 1982.
Lua MLA (8ú heag.)Eoston, Geoff. Learning from Case Studies. Simon & Schuster, 1982.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.