APA (7th ed.) Citation

Dudley, U. (2009). A guide to elementary number theory. Math. Assoc. of America.

Chicago Style (17th ed.) Citation

Dudley, Underwood. A Guide to Elementary Number Theory. [Washington, D.C.]: Math. Assoc. of America, 2009.

MLA (9th ed.) Citation

Dudley, Underwood. A Guide to Elementary Number Theory. Math. Assoc. of America, 2009.