Gaya APA
ICAO, .
(1952).
CIRCULAR 22-AN/19 RADIO-ELECTRIC STORM DETECTION (SFERICS)
.
Canada:
ICAO.
Gaya MLA
ICAO, .
"CIRCULAR 22-AN/19 RADIO-ELECTRIC STORM DETECTION (SFERICS)".
Canada:
ICAO,
1952.
Text.