Sheth, J. (2000). Handbook of relationship marketing. Resoponse.
Lua i Stíl Chicago (17ú heag.)Sheth, Jagdish. Handbook of Relationship Marketing. New Delhi: Resoponse, 2000.
Lua MLA (9ú heag.)Sheth, Jagdish. Handbook of Relationship Marketing. Resoponse, 2000.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.