APA (7th ed.) Citation

Ellis, R. H. (1981). Catalogue of seals in the Public Record Office. Her Majesty's Stationery Office.

Chicago Style (17th ed.) Citation

Ellis, Roger H. Catalogue of Seals in the Public Record Office. London: Her Majesty's Stationery Office, 1981.

MLA (9th ed.) Citation

Ellis, Roger H. Catalogue of Seals in the Public Record Office. Her Majesty's Stationery Office, 1981.