Helicopter Operations Panel :  Third Meeting, Montreal, 20-31 October 1986 : report. 

 - Montreal :  International Civil Aviation Organization,  1986. 
 - 1 v. (various pagings) :  ill. ;  28 cm. 
<br/><br/> Doc 9498 "HELIOPS/3." 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Helicopters--Congresses.<br/>Helicopters--Airworthiness--Congresses.<br/>Heliports--Congresses.
<br/><br/><label>Dewey Class. No.: </label>387.73352