Percy, John R <br/><br/>
Understanding variable stars 
John R. Percy                                               
 - Cambridge  Cambridge University Press  2007 
 - xxi, 350p. 
<br/><br/><label>ISBN: </label>978-0-521-23253-1 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pulsating variable stars<br/>Rotating variable stars<br/>Stars<br/>Variable stars
<br/><br/><label>Universal Decimal Class. No.: </label>524.33  / PER