https://www.usgs.gov/media/files/rsil-report-stable-isotopic-composition-reference-materials-usgs84-usgs85-usgs86-and
RSIL: Report of Stable Isotopic Composition for reference materials USGS84 USGS85 USGS86 and USGS87...
Reston Stable Isotope Laboratory: Report of Stable Isotopic Composition for reference materials USGS84, USGS85, USGS86, and USGS87 (Hydrogen, Carbon, and...