TY  - BOOK
AU  - James G Horsfall
TI  - Plant Disease(An Advanced Treatie): How Disease Develops In Populations
SN  - 0123564018
U1  - 632 HOR/PL 
PY  - 1978///
CY  - New York
PB  - Academic Press
KW  - prologue
KW  - some epidimics man has known
KW  - comparative anatomy of epidemics
ER  -