CHOWDHURY SUBIR. (1996). QS-9000 PIONEERS: REGISTERED COMPANIES SHARE THEIR STRATEGIES FOR SUCCESS. IRWIN.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCHOWDHURY SUBIR. QS-9000 PIONEERS: REGISTERED COMPANIES SHARE THEIR STRATEGIES FOR SUCCESS. CHICAGO: IRWIN, 1996.
एमएलए (9वां संस्करण) प्रशस्ति पत्रCHOWDHURY SUBIR. QS-9000 PIONEERS: REGISTERED COMPANIES SHARE THEIR STRATEGIES FOR SUCCESS. IRWIN, 1996.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.