Niven, Charles Some Account of the Last Bajans of King's and Marischal Colleges, p.42
Warwick 2003, p. 154. Warwick, Andrew (2003). "A very hard nut to crack". In Mario Biagioli; Peter Galison (eds.). Scientific Authorship: Credit and Intellectual Property in Science. Taylor & Francis. pp. 133–163. ISBN978-0-415-94293-5.