TY  - BOOK
AU  - Beaglehole,R.
AU  - Bonita,R.
AU  - Kjellstrom,T
TI  - Basic epidemiology
U1  - 614.4 
PY  - 1993///
CY  - New Delhi
PB  - World Health Organization
KW  - Epidemiology
KW  - Epidemiologic methods
ER  -