TY - RPRT TI - Stable isotopes provide insight into sources and cycling of N compounds in the Sacramento-San Joaquin Delta, California, USA AU - Joseph K. Fackrell AU - Tamara E. C. Kraus AU - Megan B. Young AU - Carol Kendall AU - Sara Peek PY - 2022 DO - 10.1016/j.scitotenv.2021.151592 UR - https://pubs.usgs.gov/publication/70232359 ID - 70232359 ER -