Port statistics.
British Ports Association.
Great Britain.Department of Transport.
British Ports Federation.
London : British Ports Association,
c1981-1996.
"Compiled by the Department of Transport from returns made by port authorities and undertakings."
Issued jointly by: Dept. of Transport and the British Ports Federation, 1987-
Harbors
Annual digest of port statistics
Merchant fleet statistics
Marime statistics