Porter, R. W <br/><br/>
Palomar pictorial 
R. W. Porter 
 - California  California Institute of Technology  1965 
 - [various pagings.] 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Telescope Mountings<br/> Telescopes <br/>Astronomy and Astrophysics Thesaurus 
<br/><br/><label>Universal Decimal Class. No.: </label>520.2  / PAL