O'Brien, J. A. (1986). Study guide: Computers and information processing with software tutorial and basic. Irwin.
Chicago Style (17. basım) AtıfO'Brien, James A. Study Guide: Computers and Information Processing with Software Tutorial and Basic. Homewood: Irwin, 1986.
MLA (9th ed.) AtıfO'Brien, James A. Study Guide: Computers and Information Processing with Software Tutorial and Basic. Irwin, 1986.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..