Παραπομπή APA

O'Leary, D. E. (2000). Enterprise resource planning systems: Systems, life cycle, electronic commerce and risk. Cambridge University press.

Παραπομπή Chicago Style

O'Leary, Daniel E. Enterprise Resource Planning Systems: Systems, Life Cycle, Electronic Commerce and Risk. Cambridge: Cambridge University press, 2000.

Παραπομπή MLA

O'Leary, Daniel E. Enterprise Resource Planning Systems: Systems, Life Cycle, Electronic Commerce and Risk. Cambridge University press, 2000.