Geochronology and the Ice Age
(Two general books. Some Pleistocene geologists disagree with Zeuner’s interpretation of the dating evidence, but their points of view appear in professional journals, in articles too cumbersome to list here.)
Flint, R. F.
Glacial Geology and the Pleistocene Epoch. 1947. John Wiley and Sons.
Zeuner, F. E.
Dating the Past. 1952 (3rd ed.). Methuen and Co.