TY  - BOOK
AU  - Baker, D. J. P
TI  - Epidemiology in medical practice. (4th ed.)
SN  - 0443037833
AV  - RA 651 Bak 
PY  - 1990///
CY  - London
PB  - Churchill Livingstone
KW  - EPIDEMICS
KW  - EPIDEMIOLOGY
ER  -