TY  - BOOK
AU  - Derr, Thomas Sieger 
AU  - Thomas Sieger Derr 
TI  - Barriers to Ecumenism : the Holy See and the World Council on Social Questions 
SN  - 0883440318
U1  - 262.0011 
PY  - 1983///
CY  - Maryknoll 
PB  - Orbis Books 
KW  - Evangelistic movement
ER  -