APA (7th ed.) Citation

Ullman, J. D. (1983). Principles of database systems (2nd ed.). Computer Science Press.

Chicago Style (17th ed.) Citation

Ullman, Jeffrey D. Principles of Database Systems. 2nd ed. Rockville, Md: Computer Science Press, 1983.

MLA (9th ed.) Citation

Ullman, Jeffrey D. Principles of Database Systems. 2nd ed. Computer Science Press, 1983.