APA Style

O'Brien, J, A. (1991). Introduction to information systems in business management / James A. O'Brien (6). Homewood,ill: IRWIN.

MLA Style

O'Brien, James, A.. "Introduction to information systems in business management / James A. O'Brien". 6 Homewood,ill: IRWIN, 1991. Textbook ห้องสมุดทั่วไป.