Parker, F. R. (1959). Powers and duties and libilities of an election agent and of a returning officer at a parliamentary election in England and Wales (6th ed.). Charle knight.

Parker, Frank R. Powers and Duties and Libilities of an Election Agent and of a Returning Officer at a Parliamentary Election in England and Wales. 6th ed. London: Charle knight, 1959.

Parker, Frank R. Powers and Duties and Libilities of an Election Agent and of a Returning Officer at a Parliamentary Election in England and Wales. 6th ed. Charle knight, 1959.