Improvement of operating conditions TRACON facilities. 

 - [Washington, D.C.,  1970]. 
 - [2], ii, 51 p. :  ill. 
<br/><br/> June 9, 1970.  Cover title.  4to.  [Issued with perforations. Cancels handbook 6000-7A].  Distribution made by issuing office.  CRDP Program Historic Shelflist record. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Radar air traffic control systems--United States.
<br/><br/><label>GPO Item No.: </label>0431-C-04 
<br/><br/><label>Gov. Doc. Class. No.: </label>TD 4.8/2:6000-7 B