Backhouse, J. K. Pure mathematics 1/ J.K. Backhouse, Houldsworth S.P.T. edition revised by Horril P.J.F - 4th ed revised edition - United Kingdom; Longman, 1985. - xix, 587p.; ill, 24cm. Include reference and index ISBN: 9780582353862 ISSN: LC Class. No.: QA 37.2. / B12 1985