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