SEIDL, J. (1981). Grammar in practice 1. Oxford University Press.
芝加哥风格引文SEIDL, Jennifer. Grammar in Practice 1. Toronto: Oxford University Press, 1981.
MLA引文SEIDL, Jennifer. Grammar in Practice 1. Oxford University Press, 1981.
警告：这些引文格式不一定是100％准确.