APA ציטוט

Haag, S., & Cummings, M. (2006). Information systems essentials. Boston: McGraw-Hill.

Trích dẫn kiểu Chicago

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

ציטוט MLA

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