APA (7th ed.) Zitazioa

Riddell, R. (2004). Sustainable urban planning: Tipping the balance. Blackwell.

Chicago Style (17th ed.) Zitazioa

Riddell, Robert. Sustainable Urban Planning: Tipping the Balance. Oxford: Blackwell, 2004.

MLA (9th ed.) Zitazioa

Riddell, Robert. Sustainable Urban Planning: Tipping the Balance. Blackwell, 2004.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.