'SEABROOK, Peter John', Who's Who 2013, A & C Black, an imprint of Bloomsbury Publishing plc, 2013; online edn, Oxford University Press, Dec 2012 ; online edn, Nov 2012 accessed 8 Aug 2013Archived 16 January 2022 at the Wayback Machine
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'SEABROOK, Peter John', Who's Who 2013, A & C Black, an imprint of Bloomsbury Publishing plc, 2013; online edn, Oxford University Press, Dec 2012 ; online edn, Nov 2012 accessed 8 Aug 2013Archived 16 January 2022 at the Wayback Machine