Campbell, N. A. (2021). Biology: A global approach (12th.). Pearson Education Limited.
芝加哥风格引文Campbell, Neil A. Biology: A Global Approach. 12th. Harlow, Essex, England: Pearson Education Limited, 2021.
MLA引文Campbell, Neil A. Biology: A Global Approach. 12th. Pearson Education Limited, 2021.
警告：这些引文格式不一定是100％准确.