Date, C. J. (2000). An introduction to database systems (7th ed.). Addison-Wesley/Pearson Education.

Date, C. J. An Introduction to Database Systems. 7th ed. Reading, Mass.: Addison-Wesley/Pearson Education, 2000.

Date, C. J. An Introduction to Database Systems. 7th ed. Addison-Wesley/Pearson Education, 2000.