Ames : Published under the auspices of the Agriculture Committee of the Greater Des Moines Chamber of Commerce with the cooperation of the Iowa State University Center for Agricultural and Economic Development [by] Iowa State University Press
Pt. 1. Introduction and part I : summary of events to 1930 -- pt. 2. The search for a policy -- pt. 3. From voluntary to compulsory board -- pt. 4. The assurance of markets
Staff summary of evidence : hearing concerning the transportation of dangerous commodities and recommendations contained in the report of the Mississauga Railway Accident Inquiry