British Isles and North Sea. Radiobeacons.
London :  Admiralty, 
1962.
A reproduction, at a reduced scale, of Diagram No.5478 in Admiralty List of Radio Signals Vol. 2, 1962.
Backed by: English Channel and Approaches. Radiobeacons.
In: Small Ships' Radio Telephone Handbook. Compiled by R.A.H. Collins and Thos. Cooper.