NASA  / TN D-2888 <br/>
Priester, Wolfgang  <br/>
       Extragalactic radio sources [NASA TN D-2888] 
 / Wolfgang Priester and Johan Rosenberg 
 .- Washington, D. C. : NASA,  1965 
 .- 53p. 
.- ( National Aeronautics And Space Administration [NASA]   
<br/><u>Subject Headings:</u> <br/>Radio ;