Dyfyniad APA

Haag, S., & Cummings, M. (2006). Information Systems Essentials. McGraw Hill.

Dyfyniad Arddull Chicago

Haag, Stephen, and Maeve Cummings. Information Systems Essentials. Boston: McGraw Hill, 2006.

Dyfyniad MLA

Haag, Stephen, and Maeve Cummings. Information Systems Essentials. McGraw Hill, 2006.

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