Percy, John R. <br/><br/>
Understanding variable stars / 
John R. Percy. 
 - Cambridge :  Cambridge University Press,  2011. 
 - xxi, 350 pages :  illustrations ;  26 cm 
<br/><br/><label>ISBN: </label>9781107403703 1107403707 
<br/><br/><label>Nat. Bib. No.: </label>GBB181188  bnb 
<br/><br/><label>Nat. Bib. Agency Control No.: </label>015841819  Uk 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Variable stars.<br/>Variable stars.
<br/><br/><label>LC Class. No.: </label>QB835  / .P395 2011 
<br/><br/><label>Dewey Class. No.: </label>523.844