ACM SIGACT-SIGMOD-SIGART Symposium on Principles of Database Systems Philadelphia, Pa., SIGART, Association for Computing Machinery (U.S.). Special Interest Group on Management of Data, & ACM Special Interest Group for Algorithms and Computation Theory. (1999). Proceedings of the eighteenth ACM SIGMOD-SIGACT-SIGART Symposium on Principles of Database Systems, PODS 1999, Philadelphia, Pennsylvania May 31-June 2, 1999. Association for Computing Machinery.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)ACM SIGACT-SIGMOD-SIGART Symposium on Principles of Database Systems Philadelphia, Pa., SIGART, Association for Computing Machinery (U.S.). Special Interest Group on Management of Data, و ACM Special Interest Group for Algorithms and Computation Theory. Proceedings of the Eighteenth ACM SIGMOD-SIGACT-SIGART Symposium on Principles of Database Systems, PODS 1999, Philadelphia, Pennsylvania May 31-June 2, 1999. New York: Association for Computing Machinery, 1999.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)ACM SIGACT-SIGMOD-SIGART Symposium on Principles of Database Systems Philadelphia, Pa., et al. Proceedings of the Eighteenth ACM SIGMOD-SIGACT-SIGART Symposium on Principles of Database Systems, PODS 1999, Philadelphia, Pennsylvania May 31-June 2, 1999. Association for Computing Machinery, 1999.