TY - RPRT TI - Principal facts for gravity stations and physical property measurements in the Lake Mead 30' by 60' quadrangle, Nevada and Arizona AU - V.E. Langenheim AU - J. G. Davidson AU - M.L. Anderson AU - H. R. Blank PY - 1999 DO - 10.3133/ofr99435 UR - https://pubs.usgs.gov/publication/ofr99435 ID - ofr99435 ER -