TY - RPRT TI - Tracermodel1- Excel workbook for calculation and presentation of environmental tracer data for simple groundwater mixtures: Use of chlorofluorocarbons in hydrology - a guidebook; Section III.10.3 AU - J.K. Bohlke PY - 2006 UR - https://pubs.usgs.gov/publication/70188286 ID - 70188286 ER -