APA (7th ed.) Zitazioa

Walker, R. (2007). The country in the city: The greening of the San Francisco Bay Area. University of Washington Press.

Chicago Style (17th ed.) Zitazioa

Walker, Richard. The Country in the City: The Greening of the San Francisco Bay Area. Seattle: University of Washington Press, 2007.

MLA (9th ed.) Zitazioa

Walker, Richard. The Country in the City: The Greening of the San Francisco Bay Area. University of Washington Press, 2007.