Gaya APA

O'BRIEN, J, A. (1986). COMPUTERS AND INFORMATION PROCESSING: WITH SOFTWARE TUTORIAL AND BASIC . United States of America: RICHARD D.IRWIN, INC..

Gaya MLA

O'BRIEN, JAMES, A.. "COMPUTERS AND INFORMATION PROCESSING: WITH SOFTWARE TUTORIAL AND BASIC". United States of America: RICHARD D.IRWIN, INC., 1986. Text.