General
CONN, Henry
British Buses and Trolleybuses 1950s - 1970s: South Wales
British Buses and Trolleybuses 1950s - 1970s: Their Operators and their vehicles. Part 2
CONN, Henry
British Buses and Trolleybuses 1950s - 1970s: The Midlands
British Buses and Trolleybuses 1950s - 1970s: Their Operators and their vehicles. Part 1
CONN, Henry
British Buses, Trams and Trolleybuses 1950s - 1970s: Midland Municipal Operators
British Buses, Trams and Trolleybuses 1950s - 1970s: Their Operators and their vehicles. Part 12
DEANS, Brian T.
Glasgow Trolleybuses - A Short History of Glasgow's Trolleybuses 1949 - 1967
