Cita APA (7th ed.)

Greer, A. (1992). A complete GCSE mathematics: Higher course (3rd ed.). Stanley Thornes.

Cita Chicago (17th ed.)

Greer, A. A Complete GCSE Mathematics: Higher Course. 3rd ed. Wiltshire: Stanley Thornes, 1992.

Cita MLA (9th ed.)

Greer, A. A Complete GCSE Mathematics: Higher Course. 3rd ed. Stanley Thornes, 1992.