APA-viite (7. p.)
Martyn, J. R. C. (2013). Gregory and Leander: An analysis of the special friendship between Pope Gregory the Great and Leander, Archbishop of Seville. Cambridge Scholars Publishing.
Chicago-viite (17. p.)
Martyn, John R. C. Gregory and Leander: An Analysis of the Special Friendship Between Pope Gregory the Great and Leander, Archbishop of Seville. Newcastle upon Tyne: Cambridge Scholars Publishing, 2013.
MLA-viite (9. p.)
Martyn, John R. C. Gregory and Leander: An Analysis of the Special Friendship Between Pope Gregory the Great and Leander, Archbishop of Seville. Cambridge Scholars Publishing, 2013.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.