TY  - BOOK
AU  - Friis,Robert H.
TI  - Essentials of environmental health
SN  - 0763747629
AV  - RA565 F75
U1  - 616.9/8 22
PY  - 2007///
CY  - Sudbury, Massachusetts
PB  - Jones and Bartlett
KW  - Salud ambiental
ER  -