Zwicky, Fritz <br/><br/>
Catalogue of galaxies and of clusters of galaxies  vol. 1, covering the palomar survey fields of the declination zones 0 degrees +6 degrees +12 degrees between 7th and 18th in right ascension 
Fritz Zwicky, E. Herzog and D. Wild 
 - California  California Institute of Technology  1961 
 - ix, 319p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy and Astrophysics Thesaurus<br/>Catalogue-Galaxies
<br/><br/><label>Universal Decimal Class. No.: </label>83.523  / ZWI-1