ebook,Arthur C. Benke, Colbert E. Cushing,Field Guide to Rivers of North America,Academic Press,Environmental Science,Field Guide,Life Sciences - Ecology,Limnology (freshwater),Non-Fiction,SCI/TECH,SCIENCE / Earth Sciences / Geology,SCIENCE / Earth Sciences / Hydrology,SCIENCE / Life Sciences / Ecology,Scholarly/Undergraduate,Science,Science / Nature & Ecology,Science/Environmental Science,Science/Math,Science/Mathematics,United States,Environmental Science,Life Sciences - Ecology,SCIENCE / Earth Sciences / Geology,SCIENCE / Earth Sciences / Hydrology,SCIENCE / Life Sciences / Ecology,Science/Environmental Science,Science,Science/Mathematics,Limnology (freshwater)" />