TY - RPRT TI - Approximate altitude of water levels in wells in the Chicot and Evangeline aquifers in the Houston area, Texas, spring 1981 AU - R.K. Gabrysch PY - 1981 DO - 10.3133/ofr81676 UR - https://pubs.usgs.gov/publication/ofr81676 ID - ofr81676 ER -