Wilson, Bruce Gordon. “RAIMO (ed.), A Guide to Manuscripts Relating to America in Great Britain and Ireland; JONES, Britain and the Dominions: A Guide to Business and Related Records in the UK . ; COCKERELL & GREEN, The British Insurance Business, 1547-1970”. Archivaria, vol. 9, Jan. 1979, pp. 238-41, https://archivaria.ca/index.php/archivaria/article/view/12576.