Gregg, R. S., St. Patrick's Cathedral., & Church of Ireland General Synod 1891). (1891). A sermon preached in the National Cathedral of S. Patrick,: On the opening of twenty-first session of the general synod of the Church of Ireland,. George Herbert, 117, Grafton-street..

Gregg, Robert Samuel, et al. A Sermon Preached in the National Cathedral of S. Patrick,: On the Opening of Twenty-first Session of the General Synod of the Church of Ireland,. George Herbert, 117, Grafton-street., 1891.