TY  - BOOK
AU  - Gower,A.M..
TI  - Water quality in catchment eco-systems / 
T2  - Institutions of environmental sciences series, 
SN  - 0471276928
U1  - 628.161 
PY  - 1980///
CY  - New York : 
PB  - John Wiley , 
KW  - WATER QUALITY
N1  - includes bibliographical references and index
ER  -