Gaya APA

O`brien, J, A. (1986). Computers and information processing : with software tutorial and Basic (2nd. ed.). Homewood, Illinois: richard D.Irwin.

Gaya MLA

O`brien, James, A.. "Computers and information processing : with software tutorial and Basic". 2nd. ed. Homewood, Illinois: richard D.Irwin, 1986. Text.