Rippelmeyer. Giant City State Park and the Civilian Conservation Corps. Southern Illinois University Press.
芝加哥风格引文Rippelmeyer. Giant City State Park and the Civilian Conservation Corps. Southern Illinois University Press.
MLA引文Rippelmeyer. Giant City State Park and the Civilian Conservation Corps. Southern Illinois University Press.
警告：这些引文格式不一定是100％准确.