Cita APA (7th ed.)

Shanks, D. (1978). Solved and unsolved problems in number theory (2a. ed.). Chelsea.

Cita Chicago (17th ed.)

Shanks, Daniel. Solved and Unsolved Problems in Number Theory. 2a. ed. Nueva York: Chelsea, 1978.

Cita MLA (9th ed.)

Shanks, Daniel. Solved and Unsolved Problems in Number Theory. 2a. ed. Chelsea, 1978.