TY - RPRT TI - Use of stable isotopes of nitrogen and water to identify sources of nitrogen in three urban creeks of Durham, North Carolina, 2011-12 AU - Kristen Bukowski McSwain AU - Megan B. Young AU - Mary L. Giorgino PY - 2014 DO - 10.3133/sir20145171 UR - https://pubs.usgs.gov/publication/sir20145171 ID - sir20145171 ER -