APA (7th ed.) Citation

Backhouse, J., Houldsworth, S., & Horril, P. (1985). Pure Mathematics: Book 1 (4th ed.). Longman.

Chicago Style (17th ed.) Citation

Backhouse, J.K, S.P.T Houldsworth, and P.J.F Horril. Pure Mathematics: Book 1. 4th ed. London: Longman, 1985.

MLA (9th ed.) Citation

Backhouse, J.K, et al. Pure Mathematics: Book 1. 4th ed. Longman, 1985.