Helen Ball. (2018). Cambridge International AS and A Level Mathematics Pure Mathematics 2 and 3 Student Book (Cambridge International Examinations) (edition.). HarperCollins UK.
Cita Chicago (17th ed.)Helen Ball. Cambridge International AS and A Level Mathematics Pure Mathematics 2 and 3 Student Book (Cambridge International Examinations). edition. HarperCollins UK, 2018.
Cita MLA (9th ed.)Helen Ball. Cambridge International AS and A Level Mathematics Pure Mathematics 2 and 3 Student Book (Cambridge International Examinations). edition. HarperCollins UK, 2018.
Atenció: Aquestes cites poden no estar 100% correctes.