Ian Whybrow. (2007). Ella the Superstar (Collins Big Cat). HarperCollins UK.
芝加哥风格引文Ian Whybrow. Ella the Superstar (Collins Big Cat). HarperCollins UK, 2007.
MLA引文Ian Whybrow. Ella the Superstar (Collins Big Cat). HarperCollins UK, 2007.
警告：这些引文格式不一定是100％准确.