TY  - BOOK
AU  - Cravotta,Charles A.
ED  - Pennsylvania.
ED  - Geological Survey (U.S.)
TI  - Use of stable isotopes of carbon, nitrogen, and sulfur to identify sources of nitrogen in surface waters in the lower Susquehanna River Basin, Pennsylvania
SN  - 0607872071
AV  - TD427.N5 C73 1997
U1  - 628.1/61 21
PY  - 1997/// [i.e., 2002]
CY  - [Reston, Va.], Denver CO
PB  - U.S. Dept. of the Interior, U.S. Geological Survey, U.S. Geological Survey, Branch of Information Services
KW  - Nitrogen
KW  - Environmental aspects
KW  - Susquehanna River Watershed
KW  - Water
KW  - Pollution
KW  - Point source identification
KW  - Radioactive tracers in water pollution research
N1  - 'Prepared in cooperation with the Pennsylvania Department of Environmental Protection, Bureau of Soil and Water Conservation.'; Shipping list no.: 2002-0121-P; Includes bibliographical references (p. 63-68)
ER  -