Bella Chip R. & Zebke Ron. (2007). Managing Knock Your Socks off Service. American Management Association.
Lua i Stíl Chicago (17ú heag.)Bella Chip R. agus Zebke Ron. Managing Knock Your Socks off Service. NewYork: American Management Association, 2007.
Lua MLA (9ú heag.)Bella Chip R. agus Zebke Ron. Managing Knock Your Socks off Service. American Management Association, 2007.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.