The letters of John Salisbury - Juan de Salisbury ca. 1115-1180; Millor, William J. (S.I.) 1899-1977; Brooke, Christopher 1927-2015 (Oxford At the Clarendon Press, 1979)
v.1. The early letters (1153-1161) -- v.2. The later letters (1163-1180)
Volumen 1 está en formato microficha