Gaya APA

ICAO, . (1948). CIRCULAR 7-AN/6 ENGINEERING STUDY OF FACTORS AFFECTING THE CHOIE OF FREQUENCIES OF DME . Canada: ICAO.

Gaya MLA

ICAO, . "CIRCULAR 7-AN/6 ENGINEERING STUDY OF FACTORS AFFECTING THE CHOIE OF FREQUENCIES OF DME". Canada: ICAO, 1948. Text.