Não informado. (1970). Library Information. International Civil Aviation Organization.
Chicago-viite (17. p.)Não informado. Library Information. Montreal, Canada: International Civil Aviation Organization, 1970.
MLA-viite (8. p.)Não informado. Library Information. International Civil Aviation Organization, 1970.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.