Derr, Thomas Sieger <br/><br/>
Barriers to ecumenism: the Holy See and the World Council on social questions   

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 - Maryknolls, NY.  Orbis Books  1983 
 - vii- ix, 102 p. 
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<br/><br/><label>ISBN: </label>
<br/><br/><label>Dewey Class. No.: </label>261.83  / D438