Bull. D'analys.......Sci. Bulg. : Ling. Et Liter. :Arts :vol.20:1977 

 - Sofia  Acade. Bulg. Des Sci.  1977 
<br/><br/><label>Subjects--Topical Terms: </label><br/>55922:N58
<br/><br/><label>Dewey Class. No.: </label>55922:N58  / 122 I8.20.2