Cita APA

Ullman, J. D. (2008). A first course in database systems. New Jersey: Prenticice Hall.

Chicago Style Citation

Ullman, Jefferey D. A First Course in Database Systems. New Jersey: Prenticice Hall, 2008.

Cita MLA

Ullman, Jefferey D. A First Course in Database Systems. New Jersey: Prenticice Hall, 2008.

Atenció: Aquestes cites poden no estar 100% correctes.