TY - RPRT TI - Guide for data collection to calibrate a predictive digital ground-water model of the unconfined aquifer in and near the city of Modesto, California AU - R. W. Page PY - 1977 DO - 10.3133/wri7641 UR - https://pubs.usgs.gov/publication/wri7641 ID - wri7641 ER -