Cita APA (7th ed.)

Davis, G. B. (1981). Computer data processing (2d ed.). McGraw-Hill.

Cita Chicago (17th ed.)

Davis, Gordon Bitter. Computer Data Processing. 2d ed. New York: McGraw-Hill, 1981.

Cita MLA (8th ed.)

Davis, Gordon Bitter. Computer Data Processing. 2d ed. McGraw-Hill, 1981.