Cita APA (7th ed.)

O'Brien, J. A. (1986). Study guide: Computers and information processing with software tutorial and basic. Irwin.

Cita Chicago (17th ed.)

O'Brien, James A. Study Guide: Computers and Information Processing with Software Tutorial and Basic. Homewood: Irwin, 1986.

Cita MLA (9th ed.)

O'Brien, James A. Study Guide: Computers and Information Processing with Software Tutorial and Basic. Irwin, 1986.