Ordnance Survey Landranger Map Number 7 Orkney and the Southern Isles

Penrith, J&D (2004) Scottish Islands Book 2 Orkney and Shetland (2nd Edition) Vacation Work Publications

Palsson, H & Edwards P (1978) (trans.)  Orkneyinga Saga Penguin Classics

Muir, T (2005) Orkney in the Sagas: The Story of the Earldom of Orkney as told in the Icelandic Sagas. The Orcadian Ltd.

Mackay Brown, G (1973) Magnus  Cannongate Classics

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