Additions, if required, to the statement o basic operational requirements and planning criteria approved by the Air Navigation Commission 

 - [Montreal]CA  ICAO  1999 
 - 2, 16 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>AIR TRANSPORT
<br/><br/><label>Universal Decimal Class. No.: </label>10.05.01 C2771ad