Showing 1 - 2 of 2 for search: 'Allen, Douglas C.', query time: 0.05s
1
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Ottawa : Canadian Forestry Service, Govt. of Canada, 1986.

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2
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by Houston, David R.
Radnor, Penn. : United States Department of Agriculture, Northeastern Forest Experiment Station, 1990.

Other Authors: '; “...Allen, Douglas C....”

Related Subjects

Control Management Maple syrup industry Maples Pheromones Spruce budworm Sugar maple Trees