TY  - BOOK
AU  - Waltman,Paul
TI  - Deterministic threshold models in the theory of epidemics
U1  - 574 LEC.1  
PY  - 1974///.
CY  - New york : 
PB  - Springer-Verlag, 
KW  - Epidemiology--Mathematical models
N1  - Includes index
ER  -