Pius IX, P., Wiseman, N. P., Russell, J. R., & Catholic Church. Archdiocese of Westminster. Archbishop. (1850). Apostolical letter of Pope Pius IX: Pastoral letter of Cardinal Wiseman, Lord John Russell's letter to the Bishop of Durham. Published under the Superintendence of the British Society for the Promoting the Religious Principles of the Reformation.

Pius IX, Pope, et al. Apostolical Letter of Pope Pius IX: Pastoral Letter of Cardinal Wiseman, Lord John Russell's Letter to the Bishop of Durham. Published under the Superintendence of the British Society for the Promoting the Religious Principles of the Reformation, 1850.