Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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