TY - BOOK AU - Walton, William Clarence TI - Groundwater pumping tests : design & analysis SN - 0873711084 SN - 87002950 U1 - 551.49 WAL PY - 1987/// CY - Chelsea, Mich. ; [Dublin, Ohio] PB - Lewis Publishers ; National Water Well Association KW - Aquifers - Measurement KW - Groundwater flow - Measurement ER -