Hurworth, R. (2004) The Use of the Visual Medium for Program Evaluation. Chapter 4 in Pole, C. (ed.) Seeing is Believing: The Visual Medium in Research. London: Elsevier Science
Hurworth, R. (2004) Encyclopaedia of Evaluation Sage Publications, Thousand Oaks. (12 Entries)
Owen, J. (2004) Evaluation Forms: Towards an Inclusive Framework for Evaluation Practice. Chapter 24 in Alkin, M. C. (ed.) Evaluation Roots. Sage Publications, Thousand Oaks.