Shackleton Bailey, D. R. (Ed.). (1965). Cicero’s letters to Atticus Vol. 2 58 – 54 B.C.: 46 – 93 (books III and IV) (Vol. 2, Ser. Cabridge Classical Texts and Commentaries). Cambridge Univ. Press.
Shackleton Bailey, D. R. (Ed.). (1965). Cicero’s letters to Atticus Vol. 2 58 – 54 B.C.: 46 – 93 (books III and IV) (Vol. 2, Ser. Cabridge Classical Texts and Commentaries). Cambridge Univ. Press.
Rodríguez-Pantoja Márquez, M. (Ed.). (1996). Cicerón. Cartas I. Cartas a Ático (Cartas 1-161D) (Ser. Biblioteca Clásica Gredos). Editorial Gredos.
Evelyn-White, H. G. (1919). Ausonius. 2 vols. London/New York: Heinemann/Putnam.
Aelian, Various Histories, Book VII, Chapter 8, translated by N. G. Wilson.
A research website about Archaeology of Ancient Roman Thermalism — and a meeting point for researchers and other people interested in this subject (Thermal Network).