YOURDON EDWARDS. (1982). LEARNING TO PROGRAMME IN STRUCTURED COBOL. PRENTICE -HALL INTERNATIONAL, INC.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रYOURDON EDWARDS. LEARNING TO PROGRAMME IN STRUCTURED COBOL. NEW JERSEY,USA: PRENTICE -HALL INTERNATIONAL, INC, 1982.
एमएलए (9वां संस्करण) प्रशस्ति पत्रYOURDON EDWARDS. LEARNING TO PROGRAMME IN STRUCTURED COBOL. PRENTICE -HALL INTERNATIONAL, INC, 1982.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.