(1977). Evaluating educational television and radio: Proceedings of the International Conference on Evaluation and Research in Educational Television and Radio ; the Open University, United Kingdom, 9 - 13 April 1976 (1. publ.). Open Univ. Press.
Chicago-Zitierstil (17. Ausg.)Evaluating Educational Television and Radio: Proceedings of the International Conference on Evaluation and Research in Educational Television and Radio ; the Open University, United Kingdom, 9 - 13 April 1976. 1. publ. Milton Keynes: Open Univ. Press, 1977.
MLA-Zitierstil (9. Ausg.)Evaluating Educational Television and Radio: Proceedings of the International Conference on Evaluation and Research in Educational Television and Radio ; the Open University, United Kingdom, 9 - 13 April 1976. 1. publ. Open Univ. Press, 1977.