TY - RPRT TI - Construction and use of special drawdown scales for use in prediction of water-level changes throughout heavily pumped areas AU - C.S. Conover AU - H.O. Reeder PY - 1957 DO - 10.3133/ofr5724 UR - https://pubs.usgs.gov/publication/ofr5724 ID - ofr5724 ER -