TY  - BOOK
AU  - Ratcliffe, J. A.
TI  - Sun, earth and radio : an introduction to the ionosphere and magnetosphere
SN  - 978-0303178941
PY  - 1970///
CY  - London
PB  - Weidenfeld and Nicolson
KW  - IonosphereMagnetosphereObservatories
ER  -