Murray, D. (1973). Introduction course in Dtlerentiral eguation (1st.). Longman.
芝加哥风格引文Murray, Daniel. Introduction Course in Dtlerentiral Eguation. 1st. Calcutta: Longman, 1973.
MLA引文Murray, Daniel. Introduction Course in Dtlerentiral Eguation. 1st. Longman, 1973.
警告：这些引文格式不一定是100％准确.