TY  - RPRT
TI  - Climatic charts and data of the radio refractive index for the United States and the world 
AU  - Bean, B R
AU  - Horn, J D
AU  - Ozanich, A M, Jr
PY  - 1960
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS MONO 22
DO  - 10.6028/NBS.MONO.22
ER  -