Gierke, Otto 1841-1921.
Political theories of the Middle Age /
Otto Gierke ; translated with an introduction by Frederic William Maitland 
. - Boston  : Beacon Press,  1958 
. - xiv, 197 p.  20 cm. 
 - (Beacon paperback  ; 67 )
<br/>К.: Бібліогр. в підрядк. прим.