found: Beiträge zur Raetia Romana, c1987:t.p. (Raetia Romana)
found: Columbia Lippincott gaz., 1962:p. 1573 (Rhaetia; anc. Roman prov. included Grisons canton, Switz., part of Tyrol prov. of Austria, and later Vindelicia; subjugated by Romans in 15 B.C.)
found: Oxford class. dict.(Raetia, a Roman province in the Alps, including Tyrol, parts of Bavaria, and Switzerland)
found: New Enc. Brit.(Raetia, this spelling found on inscriptions, in class. manuscripts spelled as Rhaetia)
found: Harper's dict. of class. lit. and antiqu.(Rhaetia or Raetia which is preferred)
found: Kl. Pauly(Raetia)
found: Heidenheimer Archäol.-Colloq. (3rd : 1987). Zivile und militärische Strukturen im Nordwesten der römischen Provinz Raetien, 1988:t.p. (Provinz Raetien) p. 119 (Rätien; on map: Raetia)
found: Buzzetti, P. La Rezia chiavennasca nelle epoche preromana ... 1989.