Davis, W. S. (1978). Business data processing. Addison-Wesley Pub. Co..
Cita Chicago (17th ed.)Davis, William S. Business Data Processing. Reading, Mass.: Addison-Wesley Pub. Co., 1978.
Cita MLA (9th ed.)Davis, William S. Business Data Processing. Addison-Wesley Pub. Co., 1978.
Atenció: Aquestes cites poden no estar 100% correctes.