Photo copyright Joe Ryan.
Dive Scapa Flow by Lawson Wood. Read our review...
Dive Scapa Flow by Rod Macdonald, Paperback, 176 pages (1998)
The Bull & The Barriers - The Wrecks of Scapa Flow by Lawson Wood, 2001, Tempus Publishing, Hardback.
The Underwater Photographer: Digital and Traditional Techniques by Martin Edge, Paperback, 536 pages (2009)
Adobe Photoshop for Underwater Photographers by J & S Drafahl, 224 pages (2007).