Jackson 1956

Jackson, Kenneth Hurlstone. 1956. Language and History in Early Britain: a chronological survey of the Brittonic languages 1st to 12th century. Edinburgh: University Press.

@book{jacquesestimative-jackson56early,
  author    = {Jackson, Kenneth Hurlstone},
  publisher = {Edinburgh: University Press},
  title     = {Language and History in Early Britain: a chronological survey of the Brittonic languages 1st to 12th century},
  year      = {1956}
}