00457ntaaa2200169   45000030003000000050017000030080021000200400037000410820017000781000022000952450051001172500010001682600051001783000010002296500015002396500033002540120251027202318.00714s1973  ag    01   aAR-BaBNbspacAR-BaBNeaacrdRIC  a280.1000 V26  aVan Dusen, Henry   aWorld christianity, yesterday, today, tomorrow  a1 ed.  aNew York : bAbingdon-Cokesbury Press, cc1947  a302 p  aecumenismo  aConcilio mundial de iglesias