Chris J. Isham and John C. Polkinghorne, "The Debate Over the Block Universe," in Quantum Cosmology and the Laws of Nature: Scientific Perspectives on Divine Action, ed. Robert J. Russell, Nancey C. Murphy and Chris J. Isham, Scientific Perspectives on Divine Action Series (Vatican City State; Berkeley, Calif.: Vatican Observatory Publications; Center for Theology and the Natural Sciences, 1993), 134-44. For earlier discussions see J. T. Fraser, Editor, The Voices of Time: A Cooperative Survey of Man's Views of Time as Expressed by the Sciences and by the Humanities (Amherst: The University of Massachusetts Press, 1966, 1981), Part IV.