Walker, R. (2007). The country in the city: The greening of the San Francisco Bay Area. University of Washington Press.
芝加哥风格引文Walker, Richard. The Country in the City: The Greening of the San Francisco Bay Area. Seattle: University of Washington Press, 2007.
MLA引文Walker, Richard. The Country in the City: The Greening of the San Francisco Bay Area. University of Washington Press, 2007.
警告：这些引文格式不一定是100％准确.