TY - RPRT TI - Principal facts for 1747 gravity stations in southern Kansas and central Oklahoma AU - S. L. Robbins AU - Courteney Williamson AU - Meridee Jones-Cecil PY - 1991 DO - 10.3133/ofr91335 UR - https://pubs.usgs.gov/publication/ofr91335 ID - ofr91335 ER -