Piper, Otto A.  <br/><br/>
Protestantism in an ecumenical age:   its root, its right, its task/ 
Otto A. Piper 
 - Philadelphia:   Fortress Press,  
 - ix, 254 p.  ;  22 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecumenical movement.Evangelische Kirche.Geschichte 1900-2000.
<br/><br/><label>LC Class. No.: </label>BX8.2   / .P66 1965