Second Supplement to the Third Edition of the General Catalogue of Variable Stars : Containing Information on 249 Variab 
edited by B.V. Kukarkin..[et.al]                                               
 - 3rd ed. 
 - Moscow  Publishing House "NAVKA"  1974 
 - 413p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy and Astrophysics Thesaurus<br/>Catalogue-Variable Stars<br/>Variable Stars Catalogue
<br/><br/><label>Universal Decimal Class. No.: </label>083.8 : 524.33  / KUK-S1