ebrary, Inc, & Tax, S. (2003). Service quality: Crossing boundaries. Emerald Group Publishing.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रebrary, Inc, और Steve Tax. Service Quality: Crossing Boundaries. Bradford, England: Emerald Group Publishing, 2003.
एमएलए (9वां संस्करण) प्रशस्ति पत्रebrary, Inc, और Steve Tax. Service Quality: Crossing Boundaries. Emerald Group Publishing, 2003.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.