I 49.89/2:93 (5)
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I 49.89/2:93 (8)
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I 49.89/2:93(9)
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I 49.89/2:93 (10)
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Zinc hazards to fish, wildlife, and invertebrates a synoptic review / |
1 |
I 49.89/2:93/12
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Ecology of red maple swamps in the glaciated northeast a community profile / |
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I 49.89/2:93(18)
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Habitat suitability index model for brook trout in streams of the southern Blue Ridge province surrogate variables, model evaluation, and suggested improvements / |
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I 49.89/2:94 (25)
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I 49.89/2:97(1)
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Synopsis of the biological data on the green turtle Chelonia mydas (Linnaeus 1758) / |
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I 49.89:3
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Policy guidelines on ecological information and technology management, FY 1978. |
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I 49.89:79/31
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Classification of wetlands and deepwater habitats of the United States / |
3 |
I 49.89:79/31/corr
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Classification of wetlands and deepwater habitats of the United States / |
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I 49.89:80/22
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Natural resource protection and petroleum development in Alaska / |
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I 49.89:80/22.1
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Natural resource protection and petroleum development in Alaska / |
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I 49.89:80/40.1
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Effects of air emissions on wildlife resources / |
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I 49.89:80/40.10
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The Effects of air pollution and acid rain on fish, wildlife, and their habitats / |
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I 49.89:80/40.11
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The Effects of air pollution and acid rain on fish, wildlife, and their habitats / |
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I 49.89:80/40.12
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Effects of acid precipitation on aquatic resources : results of modeling workshops / |
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I 49.89:80/40.13
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Liming of acidified waters : a review of methods and effects on aquatic ecosystems / |
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I 49.89:80/40.15
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A regional survey of the chemistry of headwater lakes and streams in New England : vulnerability to acidification / |
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I 49.89:80/40.16
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Comparative analyses of fish populations in naturally acidic and circumneutral lakes in northern Wisconsin / |
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