TY  - BOOK
AU  - JAMES, A.
TI  - Biological indicators of water quality
U1  - 628.161 C53B 
PY  - 1979///
PB  - Chichester, U. K.
KW  - WATER QUALITY -- MEASUREMENT -- CONGRESSES
KW  - WATER -- MICROBIOLOGY -- CONGRESSES
ER  -