TY - RPRT TI - Forensic applications of nitrogen and oxygen isotopes in tracing nitrate sources in urban environments AU - S. R. Silva AU - P. B. Ging AU - R. W. Lee AU - J.C. Ebbert AU - A. J. Tesoriero AU - E. L. Inkpen PY - 2002 DO - 10.1006/enfo.2002.0086 UR - https://pubs.usgs.gov/publication/70024462 ID - 70024462 ER -