Rippelmeyer, K. (2010). Giant City State Park and the Civilian Conservation Corps: A history in words and pictures. Southern Illinois University Press.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)Rippelmeyer, Kay. Giant City State Park and the Civilian Conservation Corps: A History in Words and Pictures. Carbondale: Southern Illinois University Press, 2010.
MLA -ийн эшлэл (9 дэх хэвлэлт)Rippelmeyer, Kay. Giant City State Park and the Civilian Conservation Corps: A History in Words and Pictures. Southern Illinois University Press, 2010.
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