Hughes, J., & Breckinridge, J. (1867). A discussion of the question, Is the Roman Catholic religion, in any or in all its principles or doctrines, inimical to civil or religious liberty?: And of the question, Is the Presbyterian religion, in any or in all its principles or doctrines, inimical to civil or religious liberty? John Murphy & Co. ; George Quigley.

Hughes, John, and John Breckinridge. A Discussion of the Question, Is the Roman Catholic Religion, in Any or in All Its Principles or Doctrines, Inimical to Civil or Religious Liberty?: And of the Question, Is the Presbyterian Religion, in Any or in All Its Principles or Doctrines, Inimical to Civil or Religious Liberty? Baltimore : Pittsburg[h]: John Murphy & Co. ; George Quigley, 1867.

Hughes, John, and John Breckinridge. A Discussion of the Question, Is the Roman Catholic Religion, in Any or in All Its Principles or Doctrines, Inimical to Civil or Religious Liberty?: And of the Question, Is the Presbyterian Religion, in Any or in All Its Principles or Doctrines, Inimical to Civil or Religious Liberty? John Murphy & Co. ; George Quigley, 1867.