APA (7th ed.) Citation

Freeman, R. (1997). Managing open systems (1. publ.). Kogan Page [u.a.].

Chicago Style (17th ed.) Citation

Freeman, Richard. Managing Open Systems. 1. publ. London [u.a.]: Kogan Page [u.a.], 1997.

MLA (9th ed.) Citation

Freeman, Richard. Managing Open Systems. 1. publ. Kogan Page [u.a.], 1997.