TY  - BOOK
AU  - Williams,Luanne Kemp
AU  - Langley,Ricky L.
TI  - Environmental health secrets 
SN  - 1560534087 (alk. paper)
AV  - MED RA566.23 L36
PY  - 2001///
CY  - Philadelphia
PB  - Hanley & Belfus
KW  - Environmental health
ER  -