@book{1659,
  keywords = {German language, Language use, Dialects, Pennsylvania German, Ontario},
  author = {William Keel and Klaus Mattheier and Max Center},
  title = {German language varieties worldwide: internal and external perspectives = Deutsche Sprachinseln weltweit},
  year = {2003},
  number = {Book, Whole},
  pages = {325+},
  publisher = {Lang},
  address = {Frankfurt am Main},
  url = {http://www.worldcat.org/search?q=0820464651+&qt=owc_search},
  language = {English;German},
}