COSTER, Peter J.
The Book of the Great Northern - The Main Line: An Engineering Commentary
Cotswold Aircraft Restoration Group
Gloster Pictorial - No. 1 - Gloster Aircraft Company
COTTER, Jarrod
English Electric Class 50 Owners' Workshop Manual 1967 onwards (all models)
COTTERALL, J.E.
The West Lancashire Railway
Oakwood Library of Railway History OL63