Schiffman, L. (1998). Consumer Behaviour. PHI.
Lua i Stíl Chicago (17ú heag.)Schiffman, Leon. Consumer Behaviour. PHI, 1998.
Lua MLA (9ú heag.)Schiffman, Leon. Consumer Behaviour. PHI, 1998.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.