Gaya APA

ICAO, . (1952). CIRCULAR 27-AN/24 TECHNICAL PRINCIPLES RESPECTING THE ESTABLISHMENT OF THE AERONAUTICAL FIXED TELECOMMUNICATIONS NETWORK . Canada: ICAO.

Gaya MLA

ICAO, . "CIRCULAR 27-AN/24 TECHNICAL PRINCIPLES RESPECTING THE ESTABLISHMENT OF THE AERONAUTICAL FIXED TELECOMMUNICATIONS NETWORK". Canada: ICAO, 1952. Text.