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By: Jaagumagi, R. - Ontario. Ministry of the Environment.Edition:Publication info: [Peterborough, ON], Ministry of the Environment, 1999Volume:Series:Holding Institution: Ontario Ministry of the EnvironmentSubjects: Analysis Biological assay Contaminated sediments Effect of water pollution on Environmental aspects Environmental monitoring Fish Lake sediments Ontario Pollution Polychlorinated biphenyls River sediments WaterBHL Collections:
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By: Martignoni, Mauro E., - Iwai, Paul J. - Pacific Northwest Forest and Range Experiment Station (Portland, Or.) - Canada/United States Spruce Budworms Program.Edition:Publication info: Portland, Or, Pacific Northwest Forest and Range Experiment Station, U.S. Dept. of Agriculture, Forest Service, 1981Volume: no.285Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects: Biological assay Insects Larvae Virus diseases Western spruce budwormBHL Collections: