@misc{indiciaed49148043199,
  title = {Chlorofluorocarbons (CCl3F and CCl2F2) as dating tools and hydrologic tracers in shallow groundwater of the Delmarva Peninsula, Atlantic Coastal Plain, United States},
  author = {S.A. Dunkle and Niel Plummer and E. Busenberg and P. J. Phillips and J. M. Denver and P. A. Hamilton and R. L. Michel and T.B. Coplen},
  year = {2010},
  doi = {10.1029/93wr02073},
  url = {https://pubs.usgs.gov/publication/70185445},
  note = {Source identifier: 70185445}
}