Schiffman, L. (1992). Consumer behaviour (4th.). Prentice Hall.
Lua i Stíl Chicago (17ú heag.)Schiffman, L. Consumer Behaviour. 4th. New Delhi: Prentice Hall, 1992.
Lua MLA (9ú heag.)Schiffman, L. Consumer Behaviour. 4th. Prentice Hall, 1992.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.