HARWOOD, R. (2014). Cambridge IGCSE: Chemistry coursebook. Cambridge University Press.
芝加哥风格引文HARWOOD, Richard. Cambridge IGCSE: Chemistry Coursebook. Cambridge University Press, 2014.
MLA引文HARWOOD, Richard. Cambridge IGCSE: Chemistry Coursebook. Cambridge University Press, 2014.
警告：这些引文格式不一定是100％准确.