Backhouse, J. K. Pure mathematics : Book 1 / J. K. Backhouse, S. P. T. Houldsworth, P. J. F. Horril - 4th ed. - Longman 1985 25638 ISBN: 9780582353862 Subjects--Topical Terms: MathematicsMathematics - Problems, exercises, etc. LC Class. No.: QA / 37.2