Cita APA (7th ed.)

Peters, W. S. (1987). Counting for something: Statical principles and personalities. Springer-Verlag.

Cita Chicago (17th ed.)

Peters, William S. Counting for Something: Statical Principles and Personalities. Nueva York: Springer-Verlag, 1987.

Cita MLA (9th ed.)

Peters, William S. Counting for Something: Statical Principles and Personalities. Springer-Verlag, 1987.