Hynes, Sreven J. <br/><br/>
Planetary nebulae  a practical guide and handbook for amateur astronomers 
Sreven J. Hynes                                               
 - Richnmond  Willmann-Bell  1991 
 - vi, 264p. 
<br/><br/><label>ISBN: </label>0-943396-30-1 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy and astrophysics thesaurus<br/>Nebulae<br/>Planetary nebulae
<br/><br/><label>Universal Decimal Class. No.: </label>524.37  / HYN