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close this section of the libraryJoint proceedings of the tenth Lake States Forest Tree Improvement Conference and the seventh Central States Forest Tree Improvement Conference(1)
View the documentJoint proceedings of the tenth Lake States Forest Tree Improvement Conference and the seventh Central States Forest Tree Improvement Conference, September 22-24, 1971. Lake States Forest Tree Improvement Conference (10th : 1971 : Madison, Wis.) mn : North Central Forest Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1973.