North East
LOCKWOOD, Stephen
Tees-side Trolleybuses - An Industrial Network
Trolleybus Classics Number 14
LOCKWOOD, Stephen
Darlington Trolleybuses including the Tramways
Trolleybus Classics Number 12
Newcastle City Libraries
Trams, Trains, Trolleys: A selection of photographs of public transport in Newcastle 1900 - 1958
Northern Branch, The Omnibus Society
A North-east Miscellany 1962
Brief articles on United Automobile , Tees-side operators and Darlington Corporation.