1. Jacobs, J. A., Russell, R. D., and Wilson, J. T., Physics and Geology (McGraw-Hill, New York, 1959).
2. Blackett, P. M. S., Bullard, E., and Runcorn, S. K., A Symposium on Continental Drift, Phil. Trans. Roy. Soc., A, 258, 1 (1965).
3. Upper Mantle Meeting, University of Newcastle, 1966, Geophys. J. Roy. Astro. Soc., 14, Nos. 1–4 (1967); also published as Non-Elastic Processes in the Earth's Mantle (edit. by Tozer, D. C.) (Blackwell, Oxford, 1968).