APA (7th ed.) Zitazioa
ebrary, Inc, Kenny, M., & Meadowcroft, J. (1999). Planning sustainability. Routledge.
Chicago Style (17th ed.) Zitazioa
ebrary, Inc, Michael Kenny, eta James Meadowcroft. Planning Sustainability. London ; New York: Routledge, 1999.
MLA (9th ed.) Zitazioa
ebrary, Inc, et al. Planning Sustainability. Routledge, 1999.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.