TY - BOOK AU - Stephens,Daniel B. TI - Vadose zone hydrology SN - 0873714326 AV - GB1197.7 S74 1996 PY - 1996/// CY - Baca Raton, Fla. PB - Lewis Publishers KW - Groundwater flow KW - Zone of aeration N1 - Includes bibliographical references and index ER -