Gray, J. A. M. (2009). Evidence-based healthcare and public health: How to practice and teach evidence-based decision making (3rd ed.). Churchill Livingstone.

Gray, J. A. Muir. Evidence-based Healthcare and Public Health: How to Practice and Teach Evidence-based Decision Making. 3rd ed. Edinburgh ; New York: Churchill Livingstone, 2009.

Gray, J. A. Muir. Evidence-based Healthcare and Public Health: How to Practice and Teach Evidence-based Decision Making. 3rd ed. Churchill Livingstone, 2009.