Jeffery, C. S <br/><br/>
Hydrogen-deficient stars 
J C. Seffery                                                
 - California  Astronomical Society of the Pacific  1996 
 - [various pagings.] 
<br/><br/><label>ISBN: </label>1-886733-17-1 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Helium Stars<br/>Hydrogen - defficient stars<br/>Planetary nebulae<br/>R CrB Stars<br/>White dwarfs
<br/><br/><label>Universal Decimal Class. No.: </label>082.2:52  / ASP-96