TY  - ADVS
AU  - Clough,Frank
ED  - Mersey and Veaver River Unit
ED  - Open University
TI  - Biology of polluted water
PY  - 1975///
CY  - Milton Keynes
PB  - The Open University Press
KW  - Water
KW  - Pollution
KW  - Measurement
N1  - Examines the use of biotic index, a relatively simple scheme for grading river quality according to river fauna.  Comparas the biotic indexes of polluted and inpolluted stretches of the Tame, which rises on Saddleworth Moor and runs through and industrial area of River Mersey; Backup available in VHS 1/2 in; Bahan rosak (Lupus)
ER  -