APA (7th ed.) Citation

Coppel, W. A. (2006). Number theory : an introduction to mathematics / by William A. Coppel: An introduction to mathematics. Springer Science+Business Media.

Chicago Style (17th ed.) Citation

Coppel, W. A. Number Theory : An Introduction to Mathematics / by William A. Coppel: An Introduction to Mathematics. New York: Springer Science+Business Media, 2006.

MLA (9th ed.) Citation

Coppel, W. A. Number Theory : An Introduction to Mathematics / by William A. Coppel: An Introduction to Mathematics. Springer Science+Business Media, 2006.

Warning: These citations may not always be 100% accurate.