Christian Unity: a Catholic View. Being an Account of the First Official Conference Organized by the Bishops' Committee for Christian Unity, Heythrop, August 1962. Edited by John C. Heenan
The Correspondence Between the Committee on Church Unity of the General Assembly of the Presbyterian Church in the U.S.A. and the Commission on Christian Unity of the General Convention of the Protestant Episcopal Church in the U.S.
The Report from the Committee on Christian Unity and the Church Universal of the Anglican Church of Canada & the Committee on Union of the United Church of Canada
The Correspondence Between the Committee on Church Unity of the General Assembly of the Presbyterian Church in the U.S.A. and the Commission on Christian Unity of the General Convention of the Protestant Episcopal Church in the U.S.
Historical Papers Submitted to the Christian Unity Association of Scotland by Its Special Committee, 1911-1913
The Report of a Study by the Committee on Free Church Polity and Unity to the General Council of the Congregational Christian Churches of the United States ... June 1954
The Principles of Union Between the Anglican Church of Canada and the United Church of Canada; a Report from the Committee on Christian Unity and the Church Universal of the Anglican Church of Canada and the Committee on Union of the United Church of Canada