TY  - RPRT
TI  - Reporting of nitrogen-isotope abundances (Technical Report)
AU  - Tyler B. Coplen
AU  - H.R. Krouse
AU  - J.K. Bohlke
PY  - 2009
DO  - 10.1351/pac199264060907
UR  - https://pubs.usgs.gov/publication/70188276
ID  - 70188276
ER  -