TY - RPRT TI - Biological and land use controls on the isotopic composition of aquatic carbon in the Upper Mississippi River Basin AU - Britta Voss AU - Kimberly P. Wickland AU - George R. Aiken AU - Robert G. Striegl PY - 2017 DO - 10.1002/2017gb005699 UR - https://pubs.usgs.gov/publication/70190022 ID - 70190022 ER -