Riley-Smith, Jonathan 1938-.
What were the Crusades? /
Jonathan Riley-Smith 
. - London : Basingstoke : Macmillan Press Ltd,  1978 
. - 92 p.  22 cm. 
<br/>К.: Бібліогр. : c. 77-80, Index 
<br/><label>  ISBN: </label>0-333-21372-6