Cita APA (7th ed.)

Bob Francis. (2011). Pure Maths (Collins Advanced Mathematics) (None.). HarperCollins UK.

Cita Chicago (17th ed.)

Bob Francis. Pure Maths (Collins Advanced Mathematics). None. HarperCollins UK, 2011.

Cita MLA (9th ed.)

Bob Francis. Pure Maths (Collins Advanced Mathematics). None. HarperCollins UK, 2011.

Atenció: Aquestes cites poden no estar 100% correctes.