Captain Paul Boyton "Roughing It in Rubber" : True Adventure Story of One Man's 25000 Miles in a Vulcanised Rubber Suit by Colleen Sullivan (2006, Paperback)
^Colleen SullivanCaptain Paul Boyton "Roughing It in Rubber" : True Adventure Story of One Man's 25000 Miles in a Vulcanised Rubber Suit by Colleen Sullivan (2006, Paperback)ISBN 9781419640216 (revised Mar 2016)