TY  - BOOK
AU  - FRIIS,Robert H
TI  - Essentials of Environmental Health
T2  - Essential public health
SN  - 9780763778903
U1  - 616.98 
PY  - 2012///
CY  - Burlington, MA
PB  - Jones & Bartlett Learning
KW  - ENVIRONMENTAL HEALTH
N1  - Includes Index
ER  -