TY  - BOOK
AU  - Friis,Robert H.
AU  - Riegelman Richard
TI  - Essentials of environmental health
SN  - 0763747629
U1  - WA 30 22
PY  - 2007///
CY  - Sudbury, Mass.
PB  - Jones and Bartlett
KW  - Environmental health
N1  - Includes Index and Glossary
ER  -