Cox, T. R. (1988). The park builders: A history of state parks in the Pacific northwest. University of Washington Press.
芝加哥风格引文Cox, Thomas R. The Park Builders: A History of State Parks in the Pacific Northwest. Seattle: University of Washington Press, 1988.
MLA引文Cox, Thomas R. The Park Builders: A History of State Parks in the Pacific Northwest. University of Washington Press, 1988.
警告：这些引文格式不一定是100％准确.