Perek, Lubos. <br/><br/>
Catalogue of galactic planetary nebulae / 
Lubos Perek , Lubos Kohoutek. 
 - Prague :  Academia,  1967. 
 - 276, 115 p.  ill. (part col.) ;  30 cm. 
<br/><br/> Summary in Russian.  Translation of Katalog galaktick ych planet arn ich mlhovin. 
<br/><br/>Bibliogr.: p. 27-32. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Planetary nebulae--Catalogs.
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Milky Way.