Cita APA (7th ed.)

Ullman, J. D. (1996). Principles of Database Systems (2nd ed.). Galgotia Publications(P) Ltd.

Cita Chicago (17th ed.)

Ullman, Jeffrey D. Principles of Database Systems. 2nd ed. New Delhi: Galgotia Publications(P) Ltd, 1996.

Cita MLA (9th ed.)

Ullman, Jeffrey D. Principles of Database Systems. 2nd ed. Galgotia Publications(P) Ltd, 1996.