Sally Hewitt. (2000). Life Cycles (Discovering Nature). Copper Beech.
芝加哥风格引文Sally Hewitt. Life Cycles (Discovering Nature). Copper Beech, 2000.
MLA引文Sally Hewitt. Life Cycles (Discovering Nature). Copper Beech, 2000.
警告：这些引文格式不一定是100％准确.
APA引文