TY - RPRT TI - Updated principal facts for gravity data compiled for the Fresno 1 by 2 degree sheet, California AU - Kim S. Kirchoff-Stein AU - Victoria E. Langenheim PY - 1991 DO - 10.3133/ofr914b UR - https://pubs.usgs.gov/publication/ofr914B ID - ofr914B ER -