Gaya APA

ICAO, . (2020). Annex 17: Security : Safeguarding international civil aviation against acts of unlawful interference (Ed. 11). Montreal: ICAO.

Gaya MLA

ICAO, . "Annex 17: Security : Safeguarding international civil aviation against acts of unlawful interference". Ed. 11 Montreal: ICAO, 2020. Text.