Municipal Operators
CONN, Henry
British Buses, Trams and Trolleybuses 1950s - 1970s: The North East, East Yorkshire & Durham
British Buses, Trams and Trolleybuses 1950s - 1970s: Their Operators and their vehicles. Part 4
DEANS, Brian T.
Glasgow Trolleybuses - A Short History of Glasgow's Trolleybuses 1949 - 1967
DEEGAN, Peter
Development of Lancashire's Trams & Buses - South Eastern Area - Hyndburn & Rossendale: 75 Years of Municipal Operation 1907 - 1982
Part One