Burkhardt, H. (1913). Theory of functions of a complex variable. D.C. Heath and Co..
芝加哥风格引文Burkhardt, Heinrich. Theory of Functions of a Complex Variable. London: D.C. Heath and Co., 1913.
MLA引文Burkhardt, Heinrich. Theory of Functions of a Complex Variable. D.C. Heath and Co., 1913.
警告：这些引文格式不一定是100％准确.