Groner, Tsvi <br/><br/>
Legal Methodology of Hai Gaon 

 - Missoula  Scholars Press  1985 
 - 209p 
 - Brown Judaic Studies;   198500ENGGPS0 .
<br/><br/> includes index and biblioraphy 
<br/><br/><label>ISBN: </label>0891307486     0 
<br/><br/><label>Dewey Class. No.: </label>B55.1  / B812