Gaya APA
O'Brien, James A.. (2005).
Introduction to information systems (12th ed.).
Boston:
McGraw-Hill/Irwin.
Gaya Chicago
O'Brien, James A..
Introduction to information systems.
12th ed.
Boston:
McGraw-Hill/Irwin,
2005.
Text.
Gaya MLA
O'Brien, James A..
Introduction to information systems.
12th ed.
Boston:
McGraw-Hill/Irwin,
2005.
Text.
Gaya Turabian
O'Brien, James A..
Introduction to information systems.
12th ed.
Boston:
McGraw-Hill/Irwin,
2005.
Print.