British Rail Train-Crew Manual - Class 37 -
Refurbished Locomotives - Drivers Fault Finding Data
Issue Date August 1985 - BR
33056/111 Issue 1 - To Supplement BR 33056/11 until Reprinted.
More information can be found here
Wikipedia - British Rail Class 37
The Class 37 Locomotive
Group
More Information Regarding Preserved Class 37 Locomotives can be
found on the following websites:
Preserved-Diesels
SRPS Diesel Group