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- [7] A POST WAR PROGRAM FOR AMERICAN AGRICULTURE JOURNAL OF FARM ECONOMICS, 1944, 26 (03): : 549 - 562
- [8] THE SITUATION OF AGRICULTURE IN THE NEW FEDERAL STATES BERICHTE UBER LANDWIRTSCHAFT, 1992, 70 (02): : 161 - 173
- [9] THE SITUATION OF THE UNITED STATES AT THE CLOSE OF THE WAR AS A QUESTION OF NATIONAL DEFENSE ANNALS OF THE AMERICAN ACADEMY OF POLITICAL AND SOCIAL SCIENCE, 1915, 60 : 138 - 142