Kewell, J. A. (1968). Guide to the publications of the monitoring service of the British Broadcasting Corporation: Together with an index to countries and a chronological table to notable events, 1939-1950. University Microfilms.

Kewell, John A. Guide to the Publications of the Monitoring Service of the British Broadcasting Corporation: Together with an Index to Countries and a Chronological Table to Notable Events, 1939-1950. High Wycombe: University Microfilms, 1968.

Kewell, John A. Guide to the Publications of the Monitoring Service of the British Broadcasting Corporation: Together with an Index to Countries and a Chronological Table to Notable Events, 1939-1950. University Microfilms, 1968.