Rippelmeyer. The Civilian Conservation Corps in Southern Illinois, 1933-1942. Southern Illinois University Press.
芝加哥风格引文Rippelmeyer. The Civilian Conservation Corps in Southern Illinois, 1933-1942. Southern Illinois University Press.
MLA引文Rippelmeyer. The Civilian Conservation Corps in Southern Illinois, 1933-1942. Southern Illinois University Press.
警告：这些引文格式不一定是100％准确.