TY  - BOOK
AU  - Piggott, W. R., ed.
AU  - Rawer, K., ed.
TI  - URSI handbook of ionogram interpretation and reduction of the world wide soundings committe
T2  - International scientific radio union URSI monographs
PY  - 1961///
CY  - Amsterdam
PB  - Elsevier
KW  - Astronomy and astrophysics thesaurus
KW  - Ionogram
KW  - Ionosphere
KW  - Ionospheric stations
ER  -