Bronowski, J. (1973) The Ascent of Man, Book Club Associates

Cipolla, C.M. (1976) Before the Industrial Revolution, Methuen

Hogben, L. (1970)  Beginnings and Blunders, Heineman

Kramer, S.N. (1968) Cradle of Civilisation, Time Life Books

Lauwery, J.A. (1969) Man's Impact on Nature, Aldus Books

Russell, W.M.S. (1967)  Man Nature and History, Aldus Books