01421cam a22002891a 4500 agr63000427 DLC 20260227111022.0 800104s1963 dcu b f100 0 eng agr63000427 (OCoLC)5844417 DLC NSySU-F DNAL DLC premarc S21 .A46 no. 939 1 Ag84M no.939 F830 K001 Internationally dangerous forest tree diseases / by working group on International Cooperation in Forest Disease Research, Section 24, Forest Protection, International Union of Forestry Research Organizations. Washington, D.C. : U.S. Dept. of Agriculture, Forest Service, 1963. vi, 122 p. ; 24 cm. Miscellaneous publication / United States Department of Agriculture ; no. 939 Supplement to Section 24-14, Proceedings of the 13th Congress, International Union of Forestry Research Organizations, Vienna 1961. Includes bibliographies. Trees Diseases and pests. International Union of Forestry Research Organizations. Working Group on International Cooperation in Forest Disease Research. International Union of Forestry Research Organizations. Congress (13th : 1961 : Vienna) Miscellaneous publication (United States. Department of Agriculture) ; no. 939. 11904 11904