Bob Francis. (2011). Pure Maths (Collins Advanced Mathematics) (None.). HarperCollins UK.
Dyfyniad Arddull ChicagoBob Francis. Pure Maths (Collins Advanced Mathematics). None. HarperCollins UK, 2011.
Dyfyniad MLABob Francis. Pure Maths (Collins Advanced Mathematics). None. HarperCollins UK, 2011.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.