Bullock, Kurt (2000). "Possessing Wor(l)ds: Brian Friel's Translations and the Ordnance Survey". New Hibernia Review. 4 (2). St Pauls, MN. ISSN1092-3977.
Bowring, Edgar (1852). Reports by the juries on the subjects in the thirty classes into which the exhibition was divided. p. 209. OCLC606234586.
Preston, Richard A (1980). Perspectives in the History of Military Education and Professionalism. Colorado Springs: US Air Force Academy. p. 34. OCLC612532779.
"Colonel William Yolland called in and examined". Minutes of Evidence taken before the Select Committee on Railway Companies. Vol. 10. London: House of Commons. June 1870. pp. 115–125. OCLC952817846.
