Isham, C. J., Physics, Philosophy, and Theology, 1988
Christopher Isham, "Quantum Theories of the Creation of the Universe," in R. Russell, N. Murphy and C. J. Isham (eds.), Quantum Cosmology and the Laws of Nature (Vatican City: Vatican Press, 1993), p. 74.
Christopher Isham, "Creation of the Universe as a Quantum Tunnelling Process," in (eds. R. J. Russell et al.), Physics, Philosophy and Theology (Vatican City: Vatican Press, 1988), pp. 375–408.
Isham, C. J. (1993), “Canonical Quantum Gravity and the Problem of Time”, in L. A. Ibort and M. A. Rodríguez (eds.), Integrable Systems, Quantum Groups, and Quantum Field theories. Dordrecht: Kluwer Academic Publishers, 157-288.
Isham, C. J., K. V. Kuchař, Representations Of Space-Time Diffeomorphisms. 2. Canonical Geometrodynamics," Annals Phys.164:316 (1985).
Isham, C. J. (1997), “Structural Issues in Quantum Gravity”, in M. Francaviglia et al. (eds.), Florence 1995, General Relativity and Gravitation, World Scientific.
Butterfield, Jeremy, and Chris Isham (1999), “On the Emergence of Time in Quantum Gravity”, in Butterfield (1999), 111-168.
Butterfield, Jeremy, and Christopher Isham (2001), “Spacetime and the Philosophical Challenge of Quantum Gravity”, in Craig Callender and Nick Huggett (eds.) (2001), 33-89.
Doring, Andreas and Isham, Chris, "What is a Thing?: Topos Theory in the Foundations of Physics", in Bob Coecke, New Structures in Physics, Chapter 13, pp. 753–940, Lecture Notes in Physics, 813, Springer, 2011, ISBN 978-3-642-12820-2, (also see arXiv:0803.0417v1.)