TY  - RPRT
TI  - Criteria for the operation of Federall-owned secondary calibration laboratories (ionizing radiation) 
AU  - Eisenhower, E H
AU  - Eisenhower, E H
PY  - 1991
PB  - National Institute of Standards and Technology
CY  - Gaithersburg, MD
SN  - NIST SP 812
DO  - 10.6028/NIST.SP.812
ER  -