APA (7th ed.) Citation

Bray, O. H., & Freeman, H. A. (1979). Data base computers. Lexington Books.

Chicago Style (17th ed.) Citation

Bray, Olin H., and Harvey A. Freeman. Data Base Computers. Lexington, Mass.: Lexington Books, 1979.

MLA (8th ed.) Citation

Bray, Olin H., and Harvey A. Freeman. Data Base Computers. Lexington Books, 1979.

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