Parris, H. W. (1969). Constitutional bureaucracy: The development of British central administration since the eighteenth century. Allen & Unwin.
Lua i Stíl Chicago (17ú heag.)Parris, Henry Walter. Constitutional Bureaucracy: The Development of British Central Administration Since the Eighteenth Century. London: Allen & Unwin, 1969.
Lua MLA (9ú heag.)Parris, Henry Walter. Constitutional Bureaucracy: The Development of British Central Administration Since the Eighteenth Century. Allen & Unwin, 1969.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.