Wellings, K; MacDowall, W; (2004) Evaluating Mass Media Approaches. In: Thorogood, M; Coombes, Y, (eds.) Evaluating Health Promotion. Oxford University Press, Oxford, pp. 145-161. ISBN 0-19-852880-9 https://researchonline.lshtm.ac.uk/id/eprint/11179 Full text not available from this repository.