General aviation activity survey / 
United States Department of Transportation 
 - Washington, D.C. :  U.S. Dept. of Transportation, Federal Aviation Administration, Office of Management Systems, Information and Statistics Division,  1972 
 - viii, 84 p. ;  26 cm. 
<br/><br/> Latest issue consulted: 1975 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Aeronautics, Commercial--United States--Statistics<br/>Airplanes, Company--United States--Statistics<br/>Private planes--Statistics
<br/><br/><label>Dewey Class. No.: </label>387.740973021