APA aipamena

Collard,David. Economics,growth and sustainable enviroments. St.Martin's Press.

Chicago Style aipamena

Collard,David. Economics,growth and Sustainable Enviroments. New York: St.Martin's Press.

MLA aipamena

Collard,David. Economics,growth and Sustainable Enviroments. St.Martin's Press.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.