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By: International Union of Forestry Research Organizations. Working Group on International Cooperation in Forest Disease Research. Section 24: Forest Protection. - FAO/IUFRO Symposium on Internationally Dangerous Forest Diseases and Insects Oxford, Eng.)Edition:Publication info: [Washington, U.S. Dept. of Agriculture, Forest Service, 1964Volume: 1964Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects:BHL Collections: