@article{226846, author = {Bertoldi, G. L. and Johnston, Richard H. and Evenson, Kristin D.}, url = {http://library.usi.edu/record/226846}, title = {Ground water in the Central Valley, California : a summary report /}, publisher = {U.S. G.P.O. ;}, recid = {226846}, pages = {vi, 44 p. :}, address = {Washington :}, year = {1991}, }