Cita APA (7th ed.)

O'BRIEN JAMES A. (1979). COMPUTERS IN BUSINESS MANAGEMENT: AN INTRODUCTION. RICHARD D.IRWIN INC.

Cita Chicago (17th ed.)

O'BRIEN JAMES A. COMPUTERS IN BUSINESS MANAGEMENT: AN INTRODUCTION. HOMEWOOD ILLINOIS: RICHARD D.IRWIN INC, 1979.

Cita MLA (9th ed.)

O'BRIEN JAMES A. COMPUTERS IN BUSINESS MANAGEMENT: AN INTRODUCTION. RICHARD D.IRWIN INC, 1979.