ISBN 9781559632751 books & textbook
Entering the Watershed: A New Approach To Save America's River Ecosystems
Doppelt, Robert Scurlock, Mary Frissell, Chris Karr, James R.
Island Press /1993-10-01 Paperback / 504 Pages
isbn-10: 1559632755 / isbn-13: 9781559632751
