TY  - BOOK
AU  - Walker, C.H.
TI  - Principles of ecotoxicology
SN  - 0748402217
U1  - 571.95 21st ed.
PY  - 1997///
CY  - London
PB  - Taylor and Francis
KW  - Ecotoxicology
KW  - Hopkin
KW  - S.P
KW  - Peakall
KW  - D.B
KW  - Pollutants
KW  - Pollution - Environmental aspects
KW  - Sibly
KW  - R.M
KW  - Toxicology
ER  -