Waltman, P. (1974). Deterministic threshold models in the theory of epidemics. Springer-Verlag.
Cita Chicago (17th ed.)Waltman, Paul. Deterministic Threshold Models in the Theory of Epidemics. Berlín: Springer-Verlag, 1974.
Cita MLA (9th ed.)Waltman, Paul. Deterministic Threshold Models in the Theory of Epidemics. Springer-Verlag, 1974.
Atenció: Aquestes cites poden no estar 100% correctes.