APA aipamena

Ullman, J. D., & Korth, H. F. (1988). Principles of database and knowledge-base systems. Rockville, Md: Computer Science Press.

Chicago Style aipamena

Ullman, Jeffrey D., và Henry F. Korth. Principles of Database and Knowledge-base Systems. Rockville, Md: Computer Science Press, 1988.

MLA aipamena

Ullman, Jeffrey D., và Henry F. Korth. Principles of Database and Knowledge-base Systems. Rockville, Md: Computer Science Press, 1988.