Tohutoro APA (7th ed.)

O´Brien, J. A., & Marakas, G. M. (2007). Introduction to information systems (13th ed.). McGraw-Hill.

Tohutoru Kātū Chicago

O´Brien, James A., me George M. Marakas. Introduction to Information Systems. 13th ed. Boston, MA: McGraw-Hill, 2007.

Tohutoro MLA

O´Brien, James A., me George M. Marakas. Introduction to Information Systems. 13th ed. McGraw-Hill, 2007.