Hardy, G. H. (1971). Introduction to the theory of numbers (4th.). English Language book society.
Chicago-čujuhus (17. p.)Hardy, G. H. Introduction to the Theory of Numbers. 4th. London: English Language book society, 1971.
MLA-čujuhus (9. p.)Hardy, G. H. Introduction to the Theory of Numbers. 4th. English Language book society, 1971.
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