APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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

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