MCKENNA REGIS. (1999). REAL TIME: PREPARING FOR THE AGE OF THE NEVER SATISFIDE CUSTOMER. HARVERD BUSINESS SCHOOL.
Lua i Stíl Chicago (17ú heag.)MCKENNA REGIS. REAL TIME: PREPARING FOR THE AGE OF THE NEVER SATISFIDE CUSTOMER. BOSTON: HARVERD BUSINESS SCHOOL, 1999.
Lua MLA (9ú heag.)MCKENNA REGIS. REAL TIME: PREPARING FOR THE AGE OF THE NEVER SATISFIDE CUSTOMER. HARVERD BUSINESS SCHOOL, 1999.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.