TY  - GEN
AU  - Hellawell,
TI  - Biological indicators of freshwater pollution and environmental management
T2  - Pollution monitoring series
SN  - 1851660011 
PY  - 0000///Elsevier Applied Science Publ
CY  - London
PB  - 1986
KW  - D 74
N2  - Bibliografia e Índice
ER  -