APA (7th ed.) Zitazioa
Mulder, K. (2006). Sustainable development for engineers. Greenleaf Pub..
Chicago Style (17th ed.) Zitazioa
Mulder, Karel. Sustainable Development for Engineers. Sheffield, South Yorkshire, England: Greenleaf Pub., 2006.
MLA (9th ed.) Zitazioa
Mulder, Karel. Sustainable Development for Engineers. Greenleaf Pub., 2006.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.