Cita APA

Stillwell, J., & Stillwell, J. (2003). Elements of number theory. New York, New York: Springer.

Citación estilo Chicago

Stillwell, John, y John Stillwell. Elements of Number Theory. New York, New York: Springer, 2003.

Cita MLA

Stillwell, John, y John Stillwell. Elements of Number Theory. New York, New York: Springer, 2003.