Joe,It is now sadly out of print I managed to get a copy using a book search and it cost me £30.
Cyril Tawney served in the Royal Navy and collected songs sung on board and ashore, He allso wrote song including the only submarine sea shanty.I have a copy of that somewhere I will find it and post it tomorrow.

Grey Funnel Lines
Pub 1987 Routledge&Kegan paul Ltd
ISBN 0-7102-1270-4