TY - RPRT TI - Effects of Climate Variability and Change on Groundwater Resources of the United States AU - Jason S. Gurdak AU - Randall T. Hanson AU - Timothy R. Green PY - 2009 DO - 10.3133/fs20093074 UR - https://pubs.usgs.gov/publication/fs20093074 ID - fs20093074 ER -