Hardy, G. H. (1971). Introduction to the theory of numbers (4th.). English Language book society.
芝加哥风格引文Hardy, G. H. Introduction to the Theory of Numbers. 4th. London: English Language book society, 1971.
MLA引文Hardy, G. H. Introduction to the Theory of Numbers. 4th. English Language book society, 1971.
警告：这些引文格式不一定是100％准确.