Yancey, Philip. <br/><br/>
Prayer :  does it make any difference? / 
Philip Yancey. 
 - London :  Hodder & Stoughton,  2006. 
 - 344  p. 
<br/><br/><label>ISBN: </label>0340909089 :  KES 990 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Prayer--Christianity.