TY  - RPRT
TI  - X-Ray measurements and protection, 1913-1964 
AU  - Taylor, Lauriston Sale
AU  - Tilley, W Reeves
PY  - 1981
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS SP 625
DO  - 10.6028/NBS.SP.625
ER  -