Lua APA (7ú heag.)

ebrary, Inc, & Tax, S. (2003). Service quality: Crossing boundaries. Emerald Group Publishing.

Lua i Stíl Chicago (17ú heag.)

ebrary, Inc, agus Steve Tax. Service Quality: Crossing Boundaries. Bradford, England: Emerald Group Publishing, 2003.

Lua MLA (9ú heag.)

ebrary, Inc, agus Steve Tax. Service Quality: Crossing Boundaries. Emerald Group Publishing, 2003.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.