(1969) "Natural History in the Highlands and Islands", London, Bloomsbury ISBN 1-870630-98-X* Fleming, Andrew (2005) "St. Kilda and the Wider World: Tales of an Iconic Island", Windgather Press ISBN 1-905119-00-3* Harvie-Brown, J.A.
(1969) "Natural History in the Highlands and Islands", London, Bloomsbury ISBN 187063098X* Fleming, Andrew (2005) "St. Kilda and the Wider World: Tales of an Iconic Island", Windgather Press ISBN 1905119003* Harvie-Brown, J.A.