Cassius, Dio. Ῥωμαϊκὴ Ἱστορία (Romākē Historia: Roman History), in Eighty Books. AD 210/211 to AD 230/235:

Cary, Earnest, tr, on the basis of the version of Herbert Baldwin Foster. Dio’s Roman History: In Nine Volumes. London: William Heinemann, 1914-1927
   Books 1-11: Cary, Earnest, tr, on the basis of the version of Herbert Baldwin Foster. Dio’s Roman History: In Nine Volumes – I. London: William Heinemann, 1914.
      https://ia800103.us.archive.org/1/items/DioCassiusRomanHistory9books7180WithIndices/Dio%20Cassius%20Roman%20History%201%20(books%201-11).pdf
   Books 12-25: Cary, Earnest, tr, on the basis of the version of Herbert Baldwin Foster. Dio’s Roman History: In Nine Volumes – II. London: William Heinemann, 1914.
      https://ia800103.us.archive.org/1/items/DioCassiusRomanHistory9books7180WithIndices/Dio%20Cassius%20Roman%20History%202%20(books%2012-25).pdf
   Books 36-40: Cary, Earnest, tr, on the basis of the version of Herbert Baldwin Foster. Dio’s Roman History: In Nine Volumes – III. London: William Heinemann, 1914.
      https://ia800103.us.archive.org/1/items/DioCassiusRomanHistory9books7180WithIndices/Dio%20Cassius%20Roman%20History%203%20(books%2036-40).pdf
   Books 41-45: Cary, Earnest, tr, on the basis of the version of Herbert Baldwin Foster. Dio’s Roman History: In Nine Volumes – IV. London: William Heinemann, 1916.
      https://ia800103.us.archive.org/1/items/DioCassiusRomanHistory9books7180WithIndices/Dio%20Cassius%20Roman%20History%204%20(books%2041-45).pdf
   Books 46-50: Cary, Earnest, tr, on the basis of the version of Herbert Baldwin Foster. Dio’s Roman History: In Nine Volumes – V. London: William Heinemann, 1917.
      https://ia800103.us.archive.org/1/items/DioCassiusRomanHistory9books7180WithIndices/Dio%20Cassius%20Roman%20History%205%20(books%2046-50).pdf
   Books 51-55: Cary, Earnest, tr, on the basis of the version of Herbert Baldwin Foster. Dio’s Roman History: In Nine Volumes – VI. London: William Heinemann, 1917.
      https://ia800103.us.archive.org/1/items/DioCassiusRomanHistory9books7180WithIndices/Dio%20Cassius%20Roman%20History%206%20(books%2051-55).pdf
   Books 56-60: Cary, Earnest, tr, on the basis of the version of Herbert Baldwin Foster. Dio’s Roman History: In Nine Volumes – VII. London: William Heinemann, 1924.
         https://ia800103.us.archive.org/1/items/DioCassiusRomanHistory9books7180WithIndices/Dio%20Cassius%20Roman%20History%207%20(books%2056-60).pdf
   Books 61-70: Cary, Earnest, tr, on the basis of the version of Herbert Baldwin Foster. Dio’s Roman History: In Nine Volumes – VIII. London: William Heinemann, 1925.
      https://ia800103.us.archive.org/1/items/DioCassiusRomanHistory9books7180WithIndices/Dio%20Cassius%20Roman%20History%208%20(books%2061-70).pdf
   Books 71-80: Cary, Earnest, tr, on the basis of the version of Herbert Baldwin Foster. Dio’s Roman History: In Nine Volumes – IX (with indices). London: William Heinemann, 1927.
      https://ia800103.us.archive.org/1/items/DioCassiusRomanHistory9books7180WithIndices/Dio%20Cassius%20Roman%20History%209%20(books%2071-80%20with%20indices.pdf