Oxford medieval texts
Clarendon Press
General editors, D.E. Greenway, B.F. Harvey, M. Lapidge
Aeneas Sylvius Piccolominus (Pius II) ; edited and translated by Denys Hay and W. K. Smith
The Clarendon Press 1967 Oxford medieval texts
Available at 7 libraries
edited and translated by E. L. G. Stones
Nelson 1965 Oxford medieval texts
Available at 6 libraries