Brock, Sebastian P..
Spirituality in the Syriac tradition /
Sebastian P. Brock 
. - (Revised and enlrged edition) 
. - Kottayam : St. Ephrem Ecumeicel Research Institute (SEERI),  2005 
. - 153 p.  21 cm. 
 - (Mōrān 'Eth'ō  ; 2 )