Shelly, G. B. (1980). Introduction to computers and data processing.
Chicago Style (17th ed.) ZitazioaShelly, Gary B. Introduction to Computers and Data Processing. Anaheim, 1980.
MLA (9th ed.) ZitazioaShelly, Gary B. Introduction to Computers and Data Processing. 1980.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.