MCQUARRIE EDWARD F. (1993). CUSTOMER VISITS: BUILDING A BETTER MARKET FOCUS. SAGE PUBLICATIONS.
Lua i Stíl Chicago (17ú heag.)MCQUARRIE EDWARD F. CUSTOMER VISITS: BUILDING A BETTER MARKET FOCUS. BEVERLY HILLS: SAGE PUBLICATIONS, 1993.
Lua MLA (9ú heag.)MCQUARRIE EDWARD F. CUSTOMER VISITS: BUILDING A BETTER MARKET FOCUS. SAGE PUBLICATIONS, 1993.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.