Não informado. (1971). SIG/DA newsletter. Association for Computing Machinery.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. SIG/DA Newsletter. New York: Association for Computing Machinery, 1971.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. SIG/DA Newsletter. Association for Computing Machinery, 1971.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.