Connolly, T. M., & Begg, C. E. (1999). Database systems: A practical approach to design, implementation, and management (2nd ed., revised and updated.). Addison-Wesley.

Connolly, Thomas M., and Carolyn E. Begg. Database Systems: A Practical Approach to Design, Implementation, and Management. 2nd ed., revised and updated. Harlow: Addison-Wesley, 1999.

Connolly, Thomas M., and Carolyn E. Begg. Database Systems: A Practical Approach to Design, Implementation, and Management. 2nd ed., revised and updated. Addison-Wesley, 1999.