Search and resue / 
International Civil Aviation Organization 
 - 3rd ed. 
 - Canada :  ICAO,  1947 
 - 37 p. :  ill. ;  28 cm. 
 - Procedures for air navigation services .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Navigation (Aeronantics)<br/>Aeronautics
<br/><br/><label>Dewey Class. No.: </label>629.125