TY  - BOOK
AU  - Vaughan , J.P.
TI  - Manual of epidemiology for district health management
SN  - 924154404x
PY  - 1989///
CY  - Geneva
PB  - WHO Press '
KW  - Public Health
KW  - Theory or methods of medical statistics. Epidemiologic methods
N1  - index
ER  -