Peacocke, Creation and the World of Science, 21-22. His exact phrase at that time was a "skeptical and qualified realism" and he attributes the term "critical realism" to Barbour, Myths, Models and Paradigms Note 38 includes helpful references to the discussion in philosophy of science at the time. In earlier writings Peacocke adopts a realist perspective, though without a detailed discussion. See A. R. Peacocke, Science and the Christian Experiment (London: Oxford University Press, 1971).