Derr, Thomas Sieger, 1931- <br/><br/>
Barriers to ecumenism :   the holy see and the World Council of Churches on social questions / 
Thomas Derr 
 - Maryknoll, N.Y. :  Orbis books,  c1983. 
 - 102 p. ; 21 cm. 
<br/><br/><label>ISBN: </label>0-88344-031-8 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecumenismo
<br/><br/><label>Dewey Class. No.: </label>262.001.1 D438