Cita APA (7th ed.)

Davis, G. B. (1973). Computer data processing (2nd ed.). McGraw-Hill.

Cita Chicago (17th ed.)

Davis, Grodon Bitter. Computer Data Processing. 2nd ed. New York: McGraw-Hill, 1973.

Cita MLA (9th ed.)

Davis, Grodon Bitter. Computer Data Processing. 2nd ed. McGraw-Hill, 1973.