TY  - RPRT
TI  - Standard Reference Materials Half lives of materials used in the preparation of standard reference materials of nineteen radioactive nuclides issued by the National Bureau of Standards
AU  - Cavallo, L M
AU  - Hutchinson, J M R
AU  - Smith, C N
AU  - Anspach, S C
PY  - 1965
PB  - National Institute of Standards and Technology
CY  - Gaithersburg, MD
SN  - NBS SP 260-9
DO  - 10.6028/NBS.SP.260-9
ER  -