APA (7th ed.) Zitazioa
Mulberg, J. Environmental planning, economic planning and political economy.
Chicago Style (17th ed.) Zitazioa
Mulberg, Jon. Environmental Planning, Economic Planning and Political Economy.
MLA (9th ed.) Zitazioa
Mulberg, Jon. Environmental Planning, Economic Planning and Political Economy.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.