Brutyan, G.A. <br/><br/>
The study on logic is the main content of the theoretical heritage of David the Invincible (Anhakht) / 
G.A. Brutyan ; Academy of Sciences of Armenian SSR, 
 - Yerevan :  [Academy of Sciences of Armenian SSR],  1980. 
 - 12 p. ;  20 cm. 
 - 1(47.925)(092) David the Invincible (NLA) .
<br/><br/><label>Subjects--Personal Names: </label><br/>David, the Invincible 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Philosophers--Armenia<br/>Philosophy, Armenian
<br/><br/><label>Universal Decimal Class. No.: </label>1(47.925)(092) David the Invincible (NLA)