TY - RPRT TI - Mass transfer and carbon isotope evolution in natural water systems AU - T.M.L. Wigley AU - Niel Plummer AU - F. J. Pearson PY - 1978 DO - 10.1016/0016-7037(78)90108-4 UR - https://pubs.usgs.gov/publication/70010357 ID - 70010357 ER -