Ludwig, D. (1978). Stochastic population theories. Springer-Verlag.
Cita Chicago (17th ed.)Ludwig, Donald. Stochastic Population Theories. Nueva York: Springer-Verlag, 1978.
Cita MLA (9th ed.)Ludwig, Donald. Stochastic Population Theories. Springer-Verlag, 1978.
Atenció: Aquestes cites poden no estar 100% correctes.