abc Guides & Fleet Books
The P.S.V. Circle & The Omnibus Society
Detailed Histories of the Fleets of Devon General Omnibus and Touring Company Limited and Exeter Corporation & Plymouth City Transport
Publication PH1
The P.S.V. Circle & The Omnibus Society
A History of the Devon General Omnibus and Touring Company Limited
The PSV Circle
Current Fleet Lists of Independent Operators in the Western Traffic Area - Part Two: Counties of Cornwall, Devon and Dorset
Publication FHA5 & FHB5
The PSV Circle
Current Fleets of Bus and Coach Operators - East Sussex and West Sussex
Publication G323
The PSV Circle
Current Fleet Lists of Small Operators in the Metroploitan Traffic Area
Publication FNA5 to FNC5
The PSV Circle & The Omnibus Society
Newcastle Upon Tyne Corporation
Fleet History PA16
The PSV Circle & The Omnibus Society
The Gateshead and District Omnibus Company Limited, The Jarrow and District Electric Traction Company Limited, The Sunderland District Omnibus Company Limited
Fleet History PA4
The PSV Circle & The Omnibus Society
The Municipal Operators of North East Lancashire - Blackburn Borough Council, Burnley and Pendle Joint Transport Committee, Hyndburn Borough Council, Rossendale Borough Council and their predecessors
Fleet History PC4