Pennington, M. Basil, O.C.S.O..
Centering prayer : renewing an ancient Christian prayer form /

. - Garden City  : Doubleday & Company,  1980 
. - xiv, [ii], 222 p.  21 cm. 
<br/>К.: Бібліогр. : с. 219-222. 
<br/><label>  ISBN: </label>0-385-14562-4