Internationale Okumenische Bibliographie.  International ecumenica l bibliography Bd. 1/2- 1962/63- 

 - Mainz :  Mathias-Grunewald-Verlag 
 - v.:  26 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecumenical movement--Bibliography<br/>Christian union--Bibliography
<br/><br/><label>Dewey Class. No.: </label>016.2801