John Agard; Grace Nichols. (2010). "Twinkle, Twinkle, Firefly (Collins Big Cat)". HarperCollins UK.
芝加哥风格引文John Agard; Grace Nichols. "Twinkle, Twinkle, Firefly (Collins Big Cat)". HarperCollins UK, 2010.
MLA引文John Agard; Grace Nichols. "Twinkle, Twinkle, Firefly (Collins Big Cat)". HarperCollins UK, 2010.
警告：这些引文格式不一定是100％准确.