The Growth of American Administrative Law
Ernst Freund, Robert V. Fletcher, Joseph E. Davies, Cuthbert W. Pound, John A. Kurtz & Charles Nagel
The Bar Association of St. Louis
Link to University of Chicago’s Library Catalog
Link to ebook for University of Chicago Community
Ernst Freund, "Historical Survey ," in The Growth of American Administrative Law, (The Bar Association of St. Louis, 1923).