@misc{indiciae6f941911ce03, title = {Bibliography of tritium studies related to hydrology through 1966}, author = {Edward C. Rhodehamel and Veronica B. Kron and Verda M. Dougherty}, year = {1971}, doi = {10.3133/wsp1900}, url = {https://pubs.usgs.gov/publication/wsp1900}, note = {Source identifier: wsp1900} }