Multiple periodic variable stars :  Proceedings of the International Astronomical Union Colloquium No. 29, held at Budapest, Hungary, 1-5 September 1975 : Invited papers / 
Ed. by Walter S. Fitch. 
 - Budapest :  Boston :  Akadémiai Kiadó ;  D. Reidel Publ. Co.,  1976. 
 - xiv, 348 p. :  graphs ;  25 cm. 
<br/><br/>Includes bibliogr. references 
<br/><br/><label>ISBN: </label>9630510626 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Variable stars--Congresses