A world atlas of atmospheric radio refractivity 
[by] B. R. Bean [and others] 
 - Washington  U.S. Govt. Print. Off.  1966. 
 - ix, 130 p.  illus., maps.  27 cm. 
 - United States. Environmental Science Services Administration. ESSA monograph  1 .
 - ESSA monograph  1. .
<br/><br/>Bibliography: p. 26-27. 
<br/><br/><label>LCCN: </label>68060456 //r90 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Atmospheric radio refractivity--Charts, diagrams, etc.
<br/><br/><label>LC Class. No.: </label>QC973  / .I48 
<br/><br/><label>Dewey Class. No.: </label>621.3841/1