Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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