Gaya APA

O’Brien, J, A., Marakas, G, M. (2010). Introduction to information systems - Fifteenth ed. (Edisi 15). New York: McGraw-Hill/Irwin.

Gaya MLA

O’Brien, James, A.., Marakas, George, M.. "Introduction to information systems - Fifteenth ed.". Edisi 15 New York: McGraw-Hill/Irwin, 2010. Computer File.