O'Brien, J. A. (1991). Introduction to information systems in business management (Sixth edition.). Irwin.
Citación estilo ChicagoO'Brien, James A. Introduction to Information Systems in Business Management. Sixth edition. Homewood, Ill: Irwin, 1991.
Cita MLAO'Brien, James A. Introduction to Information Systems in Business Management. Sixth edition. Irwin, 1991.
Warning: These citations may not always be 100% accurate.