Dyfyniad APA
Walker, R. (2007). The country in the city: The greening of the San Francisco Bay Area. University of Washington Press.
Dyfyniad Arddull Chicago
Walker, Richard. The Country in the City: The Greening of the San Francisco Bay Area. Seattle: University of Washington Press, 2007.
Dyfyniad MLA
Walker, Richard. The Country in the City: The Greening of the San Francisco Bay Area. University of Washington Press, 2007.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.