Bob Francis. (2011). Pure Maths (Collins Advanced Mathematics) (None.). HarperCollins UK.
Chicago-čujuhus (17. p.)Bob Francis. Pure Maths (Collins Advanced Mathematics). None. HarperCollins UK, 2011.
MLA-čujuhus (9. p.)Bob Francis. Pure Maths (Collins Advanced Mathematics). None. HarperCollins UK, 2011.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.