FORTUNE JOYCE. (1997). LEARNING FROM FAILURE: SYSTEMS APPROACH. JOHN WILEY AND SONS.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रFORTUNE JOYCE. LEARNING FROM FAILURE: SYSTEMS APPROACH. NEW JERSEY,USA: JOHN WILEY AND SONS, 1997.
एमएलए (9वां संस्करण) प्रशस्ति पत्रFORTUNE JOYCE. LEARNING FROM FAILURE: SYSTEMS APPROACH. JOHN WILEY AND SONS, 1997.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.