ebrary, Inc, & Tax, S. (2003). Service quality: Crossing boundaries. Emerald Group Publishing.
Čikaški stil citiranja (17. izdanje)ebrary, Inc, i Steve Tax. Service Quality: Crossing Boundaries. Bradford, England: Emerald Group Publishing, 2003.
MLA način citiranja (9. izdanje)ebrary, Inc, i Steve Tax. Service Quality: Crossing Boundaries. Emerald Group Publishing, 2003.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.