APA Citation

Ullman, J. D. (1982). Principles of database systems. Rockville, Md: Computer Science Press.

Trích dẫn kiểu Chicago

Ullman, Jeffrey D. Principles of Database Systems. Rockville, Md: Computer Science Press, 1982.

MLA Citation

Ullman, Jeffrey D. Principles of Database Systems. Rockville, Md: Computer Science Press, 1982.

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