University of Sydney Nuclear Research Foundation, Nuclear Research Foundation Summer Science School University of Sydney, Butler, S. T., & Messel, H. (1963). The universe of time and space: A course of selected lectures in astronomy, cosmology, and physics. Pergamon Press; Macmillan.

University of Sydney Nuclear Research Foundation, Nuclear Research Foundation Summer Science School University of Sydney, S. T. Butler, e H. Messel. The Universe of Time and Space: A Course of Selected Lectures in Astronomy, Cosmology, and Physics. Oxford, New York: Pergamon Press; Macmillan, 1963.

University of Sydney Nuclear Research Foundation, et al. The Universe of Time and Space: A Course of Selected Lectures in Astronomy, Cosmology, and Physics. Pergamon Press; Macmillan, 1963.