00273nam a2200109Ia 450000500170000000800410001708200150005810000160007324500260008926000400011530000080015520260224040911.0260224s9999||||xx |||||||||||||| ||und||  a551.49 TOD  aTodd, D.K.  0aGroundwater hydrology  aNew York: John Wiley & Sons. c2001  a535