TY  - RPRT
TI  - Analytical mass spectrometry section: instrumentation and procedures for isotopic analysis.
AU  - Shields, W A
PY  - 1966
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS TN 277
DO  - 10.6028/NBS.TN.277
ER  -