APA (7th ed.) Citation

Ullman, J. D. (1982). Principles of database systems (2nd ed.). Computer Science Press.

Chicago Style (17th ed.) Citation

Ullman, Jeffrey D. Principles of Database Systems. 2nd ed. Rockville Maryland: Computer Science Press, 1982.

MLA (8th ed.) Citation

Ullman, Jeffrey D. Principles of Database Systems. 2nd ed. Computer Science Press, 1982.

Warning: These citations may not always be 100% accurate.