Kopal, Zdenek <br/><br/>
An introduction the study of eclipsing variables 
Zdenek Kopal                                                 
 - Cambridge  Harvard University Press  1946 
 - x, 220p. 
 - Harvard observatory monographs; no. 6 .
<br/><br/> Donated by Mrs. Bappu 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy and Astrophysics Thesaurus<br/>Cataclysmic Variables<br/>Variable Stars
<br/><br/><label>Universal Decimal Class. No.: </label>524.331  / KOP