Ferrell, O. C. (2014). Business: A changing world. McGraw-Hill Irwin.
Chicago Style aipamenaFerrell, O. C. Business: A Changing World. McGraw-Hill Irwin, 2014.
MLA aipamenaFerrell, O. C. Business: A Changing World. McGraw-Hill Irwin, 2014.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.