TY  - RPRT
TI  - Compilation of elemental concentration data for NBS clinical, biological, geological, and environmental Standard Reference Materials 
AU  - Gladney, E S
AU  - O'Malley, B T
AU  - Roelandts, I
AU  - Gills, T E
PY  - 1987
PB  - National Institute of Standards and Technology
CY  - Gaithersburg, MD
SN  - NBS SP 260-111
DO  - 10.6028/NBS.SP.260-111
ER  -