Shaw, R. ;. M. (2005). Marketing Payback. John Wiley and Sons.
Lua i Stíl Chicago (17ú heag.)Shaw, Robert ; Merrick. Marketing Payback. New Delhi: John Wiley and Sons, 2005.
Lua MLA (9ú heag.)Shaw, Robert ; Merrick. Marketing Payback. John Wiley and Sons, 2005.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.