Pure mathematics J.K. Backhouse, S.P.T. Houldsworth, B.E.D. Cooper. - Backhouse, J. K. (John Kenneth), 1927-; Houldsworth, S. P. T. (Samuel Peter Truman), 1921-; Cooper, B. E. D.; Horril, P. J. F. (Peter John Foxwell) (Longman, 1985)