Use of stable isotopes of carbon, nitrogen, and sulfur to identify sources of nitrogen in surface waters in the lower Susquehanna River Basin, Pennsylvania / by Charles A. Cravotta.
Series: U.S. Geological Survey.  Water-supply paper 2497
Publisher: Dept. of the Interior
Place of publication: Washington
Language: eng
Number of pages: 99
Subjects: Water - Pollution - Susquehanna River Watershed
Notes: 11