Freeman, R. (1997). Managing open systems. Kogan Page in association with the Institute of Educational Technology, Open University.
Chicago-Zitierstil (17. Ausg.)Freeman, Richard. Managing Open Systems. London: Kogan Page in association with the Institute of Educational Technology, Open University, 1997.
MLA-Zitierstil (9. Ausg.)Freeman, Richard. Managing Open Systems. Kogan Page in association with the Institute of Educational Technology, Open University, 1997.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.