Dyfyniad APA

O'Brien, J. A. (2001). Introduction to information systems: Essentials for the Internetworked E-Business Enterprise (10th ed.). McGraw Hill - Irwin.

Dyfyniad Arddull Chicago

O'Brien, James A. Introduction to Information Systems: Essentials for the Internetworked E-Business Enterprise. 10th ed. Boston: McGraw Hill - Irwin, 2001.

Dyfyniad MLA

O'Brien, James A. Introduction to Information Systems: Essentials for the Internetworked E-Business Enterprise. 10th ed. McGraw Hill - Irwin, 2001.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.