Proceedings of the 1980 ACM SIGMOD international conference on Management of data. Association for Computing Machinery (ACM).
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रProceedings of the 1980 ACM SIGMOD International Conference on Management of Data. Association for Computing Machinery (ACM).
एमएलए (9वां संस्करण) प्रशस्ति पत्रProceedings of the 1980 ACM SIGMOD International Conference on Management of Data. Association for Computing Machinery (ACM).
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