Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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