Não informado. (1977). ACM guide to computing literature. Association for Computing Machinery.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. ACM Guide to Computing Literature. New York: Association for Computing Machinery, 1977.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. ACM Guide to Computing Literature. Association for Computing Machinery, 1977.
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