Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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