Our muddled world : [addresses delivered at the forty-ninth annual meeting of the American Academy held in Philadelphia on April 13 and 14, 1945] / edited by Ernest Minor Patterson. — Philadelphia : The American Academy of Political and Social Science, 1945. — VII, 195 с. — (The annals of the American Academy of Political and Social Science ; vol. 240) - Patterson, Ernest Minor (The annals of the American Academy of Political and Social Science, 1945)