books.google.co.ukhttp://books.google.co.uk/books/about/the_cambridge_modern_history.html?id=Jbc8AAAAIAAJ&utm_source=gb-gplus-sharethe cambridge modern history
By G. W. Prothero, Stanley Leathes, Sir Adolphus William Ward, John Emerich Edward Dalberg-Acton Acton (Baron.), Stanley Leathes, G. W. (George Walter) Prothero, Sir Adolphus William Ward
