Ocean air traffic control. 

 - [Washington, D.C.,  1989]. 
 - v. 
<br/><br/> July 18, 1989.  Shipping list no. : 89-486-P.  CRDP Program Historic Shelflist record. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Air traffic control--United States.
<br/><br/><label>GPO Item No.: </label>0431-C-04 
<br/><br/><label>Gov. Doc. Class. No.: </label>TD 4.8/2:7110.83 B/CH.2