Cita APA (7a ed.)

Haines, B., & Haines, R. (1991). Work out pure mathematics a-Level (1a ed.). Macmillan Distribution Limited.

Cita Chicago Style (17a ed.)

Haines, B., y R. Haines. Work Out Pure Mathematics A-Level. 1a ed. Hong Kong: Macmillan Distribution Limited, 1991.

Cita MLA (9a ed.)

Haines, B., y R. Haines. Work Out Pure Mathematics A-Level. 1a ed. Macmillan Distribution Limited, 1991.