Pennington, M. Basil., O.C.S.O..
Call to the center : the Gospel's invitation to deeper prayer /

. - New York ; London  Toromto  : Image Book ; Doubleday,  1990 
. - 208 p.  21 cm. 
<br/>К.: Бібліогр. : с. 203-208. 
<br/><label>  ISBN: </label>0-385-24679-x