TY  - BOOK
AU  - Rothernberg. J.
AU  - Heggie, G. Ian
TI  - Management of Water Quality and the Environment,
U1  - 628.1:65 
PY  - 1947///
CY  - London
PB  - Macmillan
KW  - Water Quality and the Environment
N1  -  International Economic Association,Lyngby, Denmark, June 20-24-1972
ER  -