Author
- International Broadcasting Convention London 3 results
- International Broadcasting Convention Brighton, England 2 results
- Farnsworth, John 1 results
- Institute of Electrical and Electronics Engineers. Region 8 1 results
- International Conference on the Automatic Operation and Control of Broadcasting Equipment (London 1 results
- New Zealand Broadcasting School 1 results
- New Zealand Broadcasting School Seminar Christchurch, N.Z. 1 results
- Norris, Paul, 1941- 1 results