Gitlow, H., Oppenheim, A., & Oppenheim, R. (1995). Quality management: Tools and methods. Irwin.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGitlow, Howard, Alan Oppenheim, और Rosa Oppenheim. Quality Management: Tools and Methods. Burr Ridge, ILL: Irwin, 1995.
एमएलए (9वां संस्करण) प्रशस्ति पत्रGitlow, Howard, et al. Quality Management: Tools and Methods. Irwin, 1995.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.