Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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