TY  - BOOK
AU  - Friis, Robert H.
AU  - Sellers, Thomas A. (jt. auth)
TI  - Epidemiology for public health practice
SN  - 0763731706
U1  - 614.4 
PY  - 2004///
CY  - Sudbury
PB  - Jones and Bartlett
KW  - Public health personnel
N1  - Includes bibliographical references and index
ER  -