APA (7th ed.) Citation

Silverman, J. H. (2018). A friendly introduction to number theory (Fourth edition.). Pearson.

Chicago Style (17th ed.) Citation

Silverman, Joseph H. A Friendly Introduction to Number Theory. Fourth edition. New York, USA: Pearson, 2018.

MLA (9th ed.) Citation

Silverman, Joseph H. A Friendly Introduction to Number Theory. Fourth edition. Pearson, 2018.