TY  - BOOK
AU  - Friis,Robert H.
AU  - Sellers,Thomas
TI  - Epidemiology for public health practice
SN  - 0763731706
PY  - 2004///
CY  - Sudbury, Massachusetts
PB  - Elsevier Saunders
KW  - Epidemiology
KW  - PUBLIC HEALTH
KW  - Public health personnel
N1  - Includes Bibliographical reference and index
ER  -