APA-ийн эшлэл(7 дахь хэвлэлт)

Hardy, G. H. (1971). Introduction to the theory of numbers (4th.). English Language book society.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Hardy, G. H. Introduction to the Theory of Numbers. 4th. London: English Language book society, 1971.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Hardy, G. H. Introduction to the Theory of Numbers. 4th. English Language book society, 1971.