Gr̤ecki, Piotr 1955-.
Parishes, tithes, and society in earlier medieval Poland, c. 1100-c. 1250 /
Piotr Gr̤ecki 
. - Philadelphia : American Philosophical Society,  1993 
. - 146 p.  map.  26 cm. 
 - Transactions of the American Philosophical Society  v. 83, pt. 2 .
<br/>К.: Бібліогр. : c. 129-139, Index 
<br/><label>  ISBN: </label>0-87169-832-3