Cita APA (7th ed.)

Hardy, G. H., & Wright, E. M. (1938). An introduction to the theory of numbers. Clarendon Press.

Cita Chicago (17th ed.)

Hardy, Godfrey Harold, i Edward Maitland Wright. An Introduction to the Theory of Numbers. Oxford: Clarendon Press, 1938.

Cita MLA (9th ed.)

Hardy, Godfrey Harold, i Edward Maitland Wright. An Introduction to the Theory of Numbers. Clarendon Press, 1938.

Atenció: Aquestes cites poden no estar 100% correctes.