APA (7th ed.) Citation

Ullman, J. D. (1989). Principles of database and knowledge-base systems / Jeffrey D. Ullman. Computer Science Press ; Freeman.

Chicago Style (17th ed.) Citation

Ullman, Jeffrey D. Principles of Database and Knowledge-base Systems / Jeffrey D. Ullman. Rockville, Md. : Oxford: Computer Science Press ; Freeman, 1989.

MLA (9th ed.) Citation

Ullman, Jeffrey D. Principles of Database and Knowledge-base Systems / Jeffrey D. Ullman. Computer Science Press ; Freeman, 1989.

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