APA引文

Ullman, J. D. (1995). Principles of database systems. Galgotia.

Chicago Edition Citation

Ullman, Jeffrey D. Principles of Database Systems. New Delhi: Galgotia, 1995.

MLA引文

Ullman, Jeffrey D. Principles of Database Systems. Galgotia, 1995.

警告：这些引文格式不一定是100％准确.