Ian Whybrow. (2007). Ella the Superstar (Collins Big Cat). HarperCollins UK.
Chicago-čujuhus (17. p.)Ian Whybrow. Ella the Superstar (Collins Big Cat). HarperCollins UK, 2007.
MLA-čujuhus (9. p.)Ian Whybrow. Ella the Superstar (Collins Big Cat). HarperCollins UK, 2007.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.