An introduction to the theory of numbers,
by G.H. Hardy and E.M. Wright.
APA Citation
Hardy, G. H. (Godfrey Harold)., Wright, E. Maitland. (1960). An introduction to the theory of numbers. 4th ed. Oxford: Clarendon Press.
MLA Citation
Hardy, G. H. (Godfrey Harold), 1877-1947, and Edward Maitland Wright. An Introduction to the Theory of Numbers. 4th ed. Oxford: Clarendon Press, 1960.
Warning: These citations may not always be complete (especially for serials).