TY - RPRT TI - Stable isotope comparison between mantle and foot tissues of two freshwater unionids: Implications for food web studies AU - Toben LaFrancois AU - Andrea K. Fritts AU - Brent C. Knights AU - Byron Karns PY - 2018 UR - https://pubs.usgs.gov/publication/70200924 ID - 70200924 ER -