Ekumenizm nieustającym imperatywem. Paul Avis. Reshaping Ecumenical Theology: The Church Made Whole? London–New York: T.&T. Clark 2010 ss. X + 209. ISBN: 978-0567070449.
Ecumenism as the Permanent Imperative. Paul Avis. Reshaping Ecumenical Theology: The Church Made Whole? London–New York: T.&T. Clark 2010 ss. X + 209. ISBN: 978-0567070449.