Sacramentum mundi : an encyclopedia of theology. Volume 1.. Absolute and contingent to Constantinian era. /
edited by Karl Rahner with Cornelius Ernst and Kevin Smyth 
. - London  : Search Press,  1973 
. - x, 420, [1] p.  26 cm. 
<br/><label>  ISBN: </label>0-85532-142-3