Awdur
- Dumbarton Oaks Colloquium on the History of Landscape Architecture 11 canlyniadau
- Food and Agriculture Organization of the United Nations 7 canlyniadau
- American Chemical Society. Division of Pesticide Chemistry 6 canlyniadau
- Dumbarton Oaks 6 canlyniadau
- International Union of Forestry Research Organizations 6 canlyniadau
- MacDougall, Elisabeth B. 6 canlyniadau
- United States. Forest Service 6 canlyniadau
- American Chemical Society. Division of Agrochemicals 5 canlyniadau
- Agronomy Society of New Zealand 4 canlyniadau
- American Chemical Society. Meeting 4 canlyniadau
- Baumgartner, David M. 4 canlyniadau
- British Society for Plant Pathology 4 canlyniadau
- Hedin, Paul A. (Paul Arthur), 1926- 4 canlyniadau
- South Pacific Commission 4 canlyniadau
- Association of Applied Biologists 3 canlyniadau
- COSPAR 3 canlyniadau
- IUCN--The World Conservation Union 3 canlyniadau
- New Zealand Logging Industry Research Association 3 canlyniadau
- North Atlantic Treaty Organization. Scientific Affairs Division 3 canlyniadau
- Pacific Regional Agricultural Programme 3 canlyniadau
- Pacific Regional Agricultural Programme. Project 1, Farming Systems in Low Lands 3 canlyniadau
- Rogers, Steve 3 canlyniadau
- Society of American Foresters. Physiology Working Group 3 canlyniadau
- Southeastern Forest Experiment Station (Asheville, N.C.) 3 canlyniadau
- University of Washington. College of Forest Resources 3 canlyniadau
- Wolschke-Bulmahn, Joachim 3 canlyniadau
- ANZAAS. Meeting 2 canlyniadau
- American Phytopathological Society 2 canlyniadau
- American Phytopathological Society. Meeting 2 canlyniadau
- Australian Centre for International Agricultural Research 2 canlyniadau
- Beemster, A. B. R. 2 canlyniadau
- Biros, Francis J. 2 canlyniadau
- Brunsden, E. R. 2 canlyniadau
- Burdon, J. J. (Jeremy James) 2 canlyniadau
- Chang, S. T. (Shu-ting), 1930- 2 canlyniadau
- Day, Peter R., 1928- 2 canlyniadau
- Drew, K. R. 2 canlyniadau
- European Foundation for Plant Pathology. Conference 2 canlyniadau
- Forest Products Research Society 2 canlyniadau
- Friend, J. 2 canlyniadau
- Hanley, Donald P., 1947- 2 canlyniadau
- Hollaender, Alexander, 1898- 2 canlyniadau
- Hunt, John Dixon 2 canlyniadau
- IUFRO Congress 2 canlyniadau
- Indian Society of Tree Scientists 2 canlyniadau
- International Association for Genetics in Aquaculture 2 canlyniadau
- International Atomic Energy Agency 2 canlyniadau
- International Biological Programme 2 canlyniadau
- International Conference on Advances in Forest and Woodland History 2 canlyniadau
- International Space Science Symposium 2 canlyniadau rhagor...