نتائج البحث

Mercury contaminates the land of 10,000 lakes.

• Source: Environment. May91, Vol. 33 Issue 4, p21. 2p.

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Acidic lakes and streams in the United States: The role of acidic deposition.

• Authors : Baker, L.; Herlihy, A.T.

• Source: Science. 5/24/1991, Vol. 252 Issue 5009, p1151. 4p. 2 Charts.

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Arctic lakes and streams as gas conduits to the atmosphere: Implications for tundra carbon budgets.

• Authors : Kling, G.W.; Kipphut, G.W.

• Source: Science. 1/18/1991, Vol. 251 Issue 4991, p298. 4p. 1 Chart, 4 Graphs.

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Restoring The Lake.

• Authors : Gilman, B.

• Source: Conservationist. Mar/Apr91, Vol. 45 Issue 5, p20. 4p. 7 Color Photographs.

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Heart of the Catskills.

• Authors : Norton, Ralph D.

• Source: Conservationist. May/Jun91, Vol. 45 Issue 6, p26. 6p. 3 Color Photographs, 1 Black and White Photograph.

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Summer on the Lakes, in 1843 (Book).

• Authors : Rogers, Michael

• Source: Library Journal. 2/15/1991, Vol. 116 Issue 3, p225-225. 1/8p.

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Fallen trees and acid lakes.

• Authors : Phillips, J.

• Source: Focus. Spring91, Vol. 41 Issue 1, p25. 1/4p.

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Repeated measures of students' marine and Great Lakes awareness

• Authors : Mayer, Victor J.; Fortner, Rosanne W.

• Source: Journal of Environmental Education. Fall1991, Vol. 23 Issue 1, p30. 0p.

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Groundwater/Rivers and Lakes/Tropical Rain Forests/Population Growth (Book).

• Authors : Silverstein, Meryl¹

• Source: School Library Journal. May91, Vol. 37 Issue 5, p102-102. 1/6p.

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Saving the defiled Great Lakes.

• Authors : Peterson, S.

• Source: Environmental Action. Jan/Feb91, Vol. 22 Issue 4, p10. 2p.

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