TY - RPRT TI - Helium determinations as an exploration technique at the Ambrosia Lake uranium district, McKinley County, New Mexico AU - B. T. Brady AU - R.S. Rice PY - 1977 DO - 10.3133/ofr77669 UR - https://pubs.usgs.gov/publication/ofr77669 ID - ofr77669 ER -