- Buth, J. L., and R. A. Ellis. 1981a. Elm bark beetle research and control in Winnipeg, 1975 to 1981. Pages 451-453 in E. S. Kondo, Y. Hiratsuka, and W. B. G. Denyer (eds.), Proceedings, Dutch elm disease symposium and workshop, 5-9 October 1981, Winnipeg, Manitoba. Canada Department of the Environment, Canadian Forestry Service, and Province of Manitoba, Department of Natural Resources. 517 p.
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