Ron Pickering. (2014). Complete Biology for Cambridge IGCSERG with CD-ROM (Second Edition) (2.). Oxford University Press.
芝加哥风格引文Ron Pickering. Complete Biology for Cambridge IGCSERG with CD-ROM (Second Edition). 2. Oxford University Press, 2014.
MLA引文Ron Pickering. Complete Biology for Cambridge IGCSERG with CD-ROM (Second Edition). 2. Oxford University Press, 2014.
警告：这些引文格式不一定是100％准确.