00771nam a2200157   450000500170000000800410001703500150005811000460007324502840011925000120040326000280041530000270044349000350047065000290050581000790053420260817161330.0               cn                  eng    a.b115517682 aInternational Civil Aviation Organization10aAbbreviations of aeronautical authorities :bservices and aircraft operating agencies : abbreviation des administrations et services, aeronautiques et des entreprises de transport aerien : abreviaturas de entidades oficiales, servicios aeronauticos y empresas de transporte aereo  a4th ed.  aMontreal :bs.n.,c1959  a1 v. (various pagings)1 aDocument ;vno. 6938-COM/534/410aAeronauticsxTerminology2 aInternational Civil Aviation Organization.tDocument ;vno. 6938-COM/534/4