Cita APA (7th ed.)

Ian Whybrow. (2007). Ella the Superstar (Collins Big Cat). HarperCollins UK.

Cita Chicago (17th ed.)

Ian Whybrow. Ella the Superstar (Collins Big Cat). HarperCollins UK, 2007.

Cita MLA (9th ed.)

Ian Whybrow. Ella the Superstar (Collins Big Cat). HarperCollins UK, 2007.

Atenció: Aquestes cites poden no estar 100% correctes.