TY - RPRT TI - Chemical compositions and critical evaluation of microprobe standards available in the Reston microprobe facility AU - J.S. Huebner AU - M.E. Woodruff PY - 1985 DO - 10.3133/ofr85718 UR - https://pubs.usgs.gov/publication/ofr85718 ID - ofr85718 ER -