APA (7th ed.) Citation

Dudley, U. (1978). Elementary number theory (2d ed.). W. H. Freeman.

Chicago Style (17th ed.) Citation

Dudley, Underwood. Elementary Number Theory. 2d ed. San Francisco: W. H. Freeman, 1978.

MLA (8th ed.) Citation

Dudley, Underwood. Elementary Number Theory. 2d ed. W. H. Freeman, 1978.