O`NEILL GERARD. (1987). INTERACTIVE VIDEO IN TRAINING VOL-13. TRAINING TECHNOLOGY PROGRAME,PARTHENIN PUBLISHING.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रO`NEILL GERARD. INTERACTIVE VIDEO IN TRAINING VOL-13. ENGLAND: TRAINING TECHNOLOGY PROGRAME,PARTHENIN PUBLISHING, 1987.
एमएलए (9वां संस्करण) प्रशस्ति पत्रO`NEILL GERARD. INTERACTIVE VIDEO IN TRAINING VOL-13. TRAINING TECHNOLOGY PROGRAME,PARTHENIN PUBLISHING, 1987.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.