||U. S. Steel - Steel Columns Magazine December 1937
||Cover of December issue shows South Works at night. Plant magazine focused on activities at South Works and Gary plants of U. S. Steel. "Steel Columns" Vol 2 No 12 Dec 1937 published by Carnegie-Illinois Steel, Chicago District.
||Carnegie-Illinois Steel Corporation
||1861; http://www.pullman-museum.org/cgi-bin/pvm/mainRecordDisplayXML.pl?recordid=10760; 82-180-V2-12
||The Industrial Heritage Archives provides reproductions of items from its collections for personal or research use. If an image is to be reproduced in any type of publication or on the web, written permission is required and use fees may be assessed.
||Southeast Chicago Historical Society