TY  - RPRT
TI  - Supplement to report CRPL-1-2, 3-1 
PY  - 1948
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS CRPL 1-2_3-1A
DO  - 10.6028/NBS.CRPL.1-2_3-1A
ER  -