APA (7th ed.) Zitazioa
Swartling, D. (2013). Towards sustainable improvement systems. Linkoping University.
Chicago Style (17th ed.) Zitazioa
Swartling, Dag. Towards Sustainable Improvement Systems. Linkoping, Sweden: Linkoping University, 2013.
MLA (9th ed.) Zitazioa
Swartling, Dag. Towards Sustainable Improvement Systems. Linkoping University, 2013.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.