Hughes, D., Petsoulas, C., Allen, P., Vincent-Jones, P., & Roberts, J. (2011). The use of standard contracts in the English NHS: A case study analysis. Social Science & Medicine,, 73(2), pp. 185-92. doi:10.1016/j.socscimed.2011.05.021

Hughes, David, Christina Petsoulas, Pauline Allen, Peter Vincent-Jones, and Jennifer Roberts. "The Use of Standard Contracts in the English NHS: A Case Study Analysis." Social Science & Medicine, 73, no. 2 (2011): 185-92.

Hughes, David, et al. "The Use of Standard Contracts in the English NHS: A Case Study Analysis." Social Science & Medicine, 73.2 (2011): 185-92.