APA (7th ed.) Citation

Cantwell, J. D. (1991). The Public Record Office 1838-1958 / by John D. Cantwell. H.M.S.O..

Chicago Style (17th ed.) Citation

Cantwell, John D. The Public Record Office 1838-1958 / by John D. Cantwell. London: H.M.S.O., 1991.

MLA (9th ed.) Citation

Cantwell, John D. The Public Record Office 1838-1958 / by John D. Cantwell. H.M.S.O., 1991.

Warning: These citations may not always be 100% accurate.