Obrien,James A. (2007). Enter prise information Systems (13.). McGraw-Hill Publ.
Chicago Style (17th ed.) CitationObrien,James A. Enter Prise Information Systems. 13. Boston: McGraw-Hill Publ, 2007.
MLA (9th ed.) CitationObrien,James A. Enter Prise Information Systems. 13. McGraw-Hill Publ, 2007.
Warning: These citations may not always be 100% accurate.