APA (7th ed.) Citation

Ullman, J. D., & Widom, J. (1997). A first course in database systems. Prentice-Hall.

Chicago Style (17th ed.) Citation

Ullman, Jeffrey D., and Jennifer Widom. A First Course in Database Systems. Upper Saddle River, New Jersey: Prentice-Hall, 1997.

MLA (9th ed.) Citation

Ullman, Jeffrey D., and Jennifer Widom. A First Course in Database Systems. Prentice-Hall, 1997.