Cassian, J..
Conferences /
Transl. and Preface by C.Luibheid; Intr. by O.Chadwick 
. - New York; Mahwah; Toronto : Paulist Press,  1985 
. - xv, 207 p.  23 cm. 
 - (The Classic of Western Spirituality )
<br/><label>  ISBN: </label>0-8091-2694-X