Tohutoro APA (7th ed.)
Ullman, J. D. (2002). Principles of database systems (2nd ed.). Galgotia Pub.
Tohutoru Kātū Chicago (17th ed.)
Ullman, Jeffrey D. Principles of Database Systems. 2nd ed. New Delhi: Galgotia Pub, 2002.
Tohutoro MLA (9th ed.)
Ullman, Jeffrey D. Principles of Database Systems. 2nd ed. Galgotia Pub, 2002.
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