Nelkon, M. (1974). Exercises in ordinary level physics. Chatto and Windus.
芝加哥风格引文Nelkon, M. Exercises in Ordinary Level Physics. Oxford: Chatto and Windus, 1974.
MLA引文Nelkon, M. Exercises in Ordinary Level Physics. Chatto and Windus, 1974.
警告：这些引文格式不一定是100％准确.