Our Changing World-View: Ten Lectures on Recent Movements of Thought in Science, Economics, Education, Literature and Philosophy (en Inglés)
Jan Christian Smuts; John Patrick Dalton; Robert Broom; John Frederick Vicars Phillips; Ian D Maccrone; John Young Thomson Greig; Theodorus Johannes Haarhof; Cecil Sydney Richards; Sally Herbert Frankel; Reinhold Frederick Alfred HoernlÉ
Wits University Press, 2021, Tapa Blanda, Nuevo