Northwick Park: differenze tra le versioni

* {{Cita web |url=http://www.ltmcollection.org/photos/results/results.html?IXsearch=Northwick+Park&button=GO%21 |titolo=Northwick Park |editore=London Transport Museum |opera=Photographic Archive |urlarchivio=https://web.archive.org/web/20140217115558/http://www.ltmcollection.org/photos/results/results.html?IXsearch=Northwick+Park&button=GO%21 |dataarchivio=17 febbraio 2014 |urlmorto=noyes |accesso=5 febbraio 2019 }}