Christensen, Ronald <br/><br/>
World developments in radio astronomy 
Ronald Christensen                                           
 - California  General Electronic Company  1959 
 - v, 93p. 
 - RM 59 TMP-80 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy and astrophysics thesaurus<br/>Radio astronomy
<br/><br/><label>Universal Decimal Class. No.: </label>52-77  / CHR