books.google.it - Among the provinces long occupied by Rome, Britain retained the slightest imprint of the invading civilization. To explain why this was true, Michael E. Jones offers a lucid and thorough analysis of the economic, social, military, and environmental problems that contributed to the failure of the Romans....http://books.google.it/books/about/The_end_of_Roman_Britain.html?hl=it&id=hBNr765THaIC&utm_source=gb-gplus-shareThe end of Roman Britain
