APA-ийн эшлэл(7 дахь хэвлэлт)

Hardy,G.G. and Wright E.M. (1968). Introduction to the theory of numbers (4th ed.). Clarendon Press.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Hardy,G.G. and Wright E.M. Introduction to the Theory of Numbers. 4th ed. Oxford: Clarendon Press, 1968.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Hardy,G.G. and Wright E.M. Introduction to the Theory of Numbers. 4th ed. Clarendon Press, 1968.