a review of activities and progress. National resources board. June, 1935 U.S. National Resources Board creator text dcu Washington U.S. Govt. Print Off 1935 monographic eng 310 p. ill., maps, charts, diagrs. Bibliography of state planning reports in the National resources board" : p. 294-305 Regional planning U.S Natural resources Social Surveys 911217 20160527193420.0 26601