TY  - BOOK
AU  - Ratcliffe,J.A.
TI  - Sun, earth, and radio: an introduction to the ionosphere and magnetosphere
T2  - World university library
AV  - QC879 .R36
U1  - 551.5/145 
PY  - 1970///]
CY  - New York
PB  - McGraw-Hill
KW  - Ionosphere
KW  - Local
KW  - Ionospheric radio wave propagation
KW  - Magnetosphere
N1  - 921004; Bibliography: p. 247-248
ER  -