APA aipamena

O'Brien, J. A. (2005). Introduction to information systems. "McGraw-Hill Irwin".

Chicago Style aipamena

O'Brien, James A. Introduction to Information Systems. "McGraw-Hill Irwin", 2005.

MLA aipamena

O'Brien, James A. Introduction to Information Systems. "McGraw-Hill Irwin", 2005.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.