Hiam, A. (1992). Closing The Quality Gap Lessons From America's Leading Companies Alexander Hiam. Prentice-Hall.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHiam, Alexander. Closing The Quality Gap Lessons From America's Leading Companies Alexander Hiam. Prentice-Hall, 1992.
एमएलए (8वां संस्करण) प्रशस्ति पत्रHiam, Alexander. Closing The Quality Gap Lessons From America's Leading Companies Alexander Hiam. Prentice-Hall, 1992.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.