TY  - RPRT
TI  - Deuterium: Natural variations used as a biological tracer
AU  - J.D. Gleason
AU  - I. Friedman
PY  - 1970
DO  - 10.1126/science.169.3950.1085
UR  - https://pubs.usgs.gov/publication/70010122
ID  - 70010122
ER  -