TY  - BOOK
AU  - Buck,Carol
ED  - Pan American Health Organization.
TI  - The Challenge of epidemiology: issues and selected readings 
T2  - Scientific publication
SN  - 9275115052
PY  - 1988///
CY  - Washington, D.C.
PB  - Pan American Health Organization, Pan American Sanitary Bureau, Regional Office of the World Health Organization
KW  - Epidemiology
ER  -