TY  - GEN
AU  - Essential environmental science
AU  - Watts, Simon, ed.
AU  - Halliwell, Lyndsay, ed.
ED  - 
ED  - 
ED  - 
TI  - Essential environmental science
U1  - 628 
PY  - 1996///
CY  - London
PB  - Routledge
KW  - 
ER  -