CLELAND, D. I., & CLELAND, D. I. (1975). Systems Analysis And Project Management Second Edition/ David I. Cleland. McGraw-Hill.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCLELAND, David I., और David I. CLELAND. Systems Analysis And Project Management Second Edition/ David I. Cleland. McGraw-Hill, 1975.
एमएलए (8वां संस्करण) प्रशस्ति पत्रCLELAND, David I., और David I. CLELAND. Systems Analysis And Project Management Second Edition/ David I. Cleland. McGraw-Hill, 1975.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.