Propagation of radio waves at frequencies below 300 kc/s;  proceedings of the seventh meeting of the AGARD Ionospheric Research Committee, Munich, 1962. 
Edited by W. T. Blackband. 
 - Oxford,  Published for and on behalf of Advisory Group for Aeronautical Research and Development.  North Atlantic Treaty Organization by Pergamon Press; [distributed in the Western Hemisphere by Macmillan, New York]  1964. 
 - xii, 478 p.  illus.  25 cm. 
<br/><br/><label>Subjects--Index Terms: </label>Radio waves 
<br/><br/><label>Dewey Class. No.: </label>621.38411  / NAT