TY  - BOOK
AU  - Friis,Robert H.
TI  - Essentials of environmental health / 
T2  - Essential public health series, 
U1  - 616.98 
PY  - 2012///
CY  - Massachusetts : 
PB  - Jones & Bartlett , 
KW  - ENVIRONMENTAL HEALTH
KW  - ENVIRONMENTAL POLLUTION
N1  - Includes bibliographical references, glossary and index
ER  -