Shackleton Bailey, D. R. (2001). Cicero. Letters to friends (Vol. 1). Harvard University Press.
Deufert 2019
Marcus Deufert (2019): Titus Lucretius Carus: De Rerum Natura libri VI, BT 2028, de Gruyter, Berlin/Boston, ISBN 978-3-11-026251-3.
Shackleton Bailey, D. R. (2001). Cicero. Letters to friends (Vol. 1). Harvard University Press.
Marcus Deufert (2019): Titus Lucretius Carus: De Rerum Natura libri VI, BT 2028, de Gruyter, Berlin/Boston, ISBN 978-3-11-026251-3.
Shackleton Bailey, D.R. (1987). Cicero: Epistulae ad Atticum. Stutgardiae. B.G. Teubneri.
Allen, T.J. (1998): Roman healing spas in Italy: a study in design and function. PhD. University of Alberta. Alberta. DOI: 10.7939/R3XK84W4C
A research website about Archaeology of Ancient Roman Thermalism — and a meeting point for researchers and other people interested in this subject (Thermal Network).