Author
Gray, Harold Farnsworth, b. 1885
2
Herms, William B. (William Brodbeck), 1876-1949
2
Adeyemi, S. A. O.
1
Cassells, A. C.
1
Commission of the European Communities. Directorate-General for Agriculture
1
Covell, Gordon, Sir, 1887-
1
Crüger, Gerd
1
Daniel, M. J.
1
Donnelly, Joseph
1
Entomological Research Workers' Conference Indian Agricultural Research Institute
1
European Mite Symposium Warsaw
1
Forest Research Institute (N.Z.)
1
Giussani, Gianluigi
1
Hansen, A. J.
1
Indian Council of Agricultural Research
1
International Horticultural Congress Hamburg, Germany
1
International Society for Horticultural Science. Commission on Plant Protection
1
International Society for Horticultural Science. Working Group on Weed Control in Vegetables
1
International Symposium on Fruit Tree Virus Diseases
1
Istituto italiano di idrobiologia (Pallanza, Italy)
1
Killian, Herbert
1
Liere, Louis van
1
Moss, Brian
1
North Shore Improvement Association
1
Polska Akademia Nauk. Wydział Nauk Rolniczych i Leśnych
1
Raghava Kurup, C. G.
1
Ramakrishnan, Simili Ponnuswami, 1913-
1
Schmutzenhofer, Heinrich
1
Shaler, Nathaniel Southgate, 1841-1906
1
Symposium on Bacterial and Bacteria-like Contaminants of Plant Tissue Cultures
1
Western Nigeria (Nigeria). Ministry of Agriculture and Natural Resources
1