Proceedings of the 1981 ACM SIGMOD international conference on Management of data. Association for Computing Machinery (ACM).
Cita Chicago (17th ed.)Proceedings of the 1981 ACM SIGMOD International Conference on Management of Data. Association for Computing Machinery (ACM).
Cita MLA (9th ed.)Proceedings of the 1981 ACM SIGMOD International Conference on Management of Data. Association for Computing Machinery (ACM).
Atenció: Aquestes cites poden no estar 100% correctes.