Caraman, P. (1995). A study in friendship: Saint Robert Southwell and Henry Garnet. Institute of Jesuit Sources.
Chicago-viite (17. p.)Caraman, Philip. A Study in Friendship: Saint Robert Southwell and Henry Garnet. Saint Louis, Mo: Institute of Jesuit Sources, 1995.
MLA-viite (8. p.)Caraman, Philip. A Study in Friendship: Saint Robert Southwell and Henry Garnet. Institute of Jesuit Sources, 1995.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.