Williams, Thomas R <br/><br/>
Advancing variable star astronomy  the centennial history of the American association of variable star observers 
T. R. Williams and M. Saladyga 
 - Cambridge  Cambridge University Press  2011 
 - xv, 432p. 
<br/><br/><label>ISBN: </label>978-0-521-51912-0 
<br/><br/><label>Subjects--Topical Terms: </label><br/>American association of variable star observers<br/>Astronomical observations-United States-History<br/>Variable stars
<br/><br/><label>Universal Decimal Class. No.: </label>524.33:973  / WIL