TY  - RPRT
TI  - Circular of the Bureau of Standards no. 507: x-ray calibration of radiation survey meters, pocket chambers, and dosimeters
AU  - Day, Frank H
PY  - 1951
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS CIRC 507
DO  - 10.6028/NBS.CIRC.507
ER  -