'Plate 1: Section of map of London by R. Horwood (1799) (north part of Gray's Inn Road).', Survey of London: volume 24: The parish of St Pancras part 4: King’s Cross Neighbourhood (1952), pp. 1. URL: http://www.british-history.ac.uk/report.aspx?compid=65580 Date accessed: 20 April 2014.
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