Cita APA (7a ed.)

Smith, D., & Keyfitz, N. (1977). Mathematical demography (1st edition.). Springer-Verlag.

Cita Chicago Style (17a ed.)

Smith, David, y Nathan Keyfitz. Mathematical Demography. 1st edition. Berlín: Springer-Verlag, 1977.

Cita MLA (8a ed.)

Smith, David, y Nathan Keyfitz. Mathematical Demography. 1st edition. Springer-Verlag, 1977.