al-Farabi <br/><br/>
Kitab al-huruf / 
Abu Nasr al-Farabi. 
 - Beirut :  Dar al-Mashriq,  1970. 
 - 252 p. ;  25 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Metaphysics--Early works to 1800.